English — Forum #723 (Page 422/642)

1. The problem has been solved---Resolved - HCBBS Forum
2. The Pitfall of Low Prices – The Chaotic Competition in the Environmental Protection Industry Turns Into Fierce Competition - HCBBS Forum
3. What audio apps on Android phones allow setting playback at 1.3x speed? Does anyone know? - HCBBS Forum
4. December 14th: True/False question No. 119 on boiler foundations: (A certain score will be given to the top 50 participants) - HCBBS Forum
5. The posts keep automatically breaking into new lines; this has been the case for months. Is no one going to fix it? - HCBBS Forum
6. Computer specifications for running ASPEN v8.6 - HCBBS Forum
7. It occurred to me suddenly: when riding in a vehicle in winter, is it useful to have a hot water bottle? - HCBBS Forum
8. Which expert has a plan for unloading trains with tank cars? - HCBBS Forum
9. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 385 - HCBBS Forum
10. How to determine the mixed reflux extraction position in the A/O process - HCBBS Forum
11. pH meter - HCBBS Forum
12. Issues with the metal sintered filter elements in the reforming catalyst dust collector - HCBBS Forum
13. Is the nominal pressure calculated based on gauge pressure or absolute pressure? - HCBBS Forum
14. 【Daily Question】2015.12.12 Harmful elements in steel (2 wealth points for a reply; +3 to +8 wealth points if the answer is correct) - HCBBS Forum
15. Safe use of glass level gauges - HCBBS Forum
16. Looking to find solenoid valves - HCBBS Forum
17. How many papers are required to evaluate for an intermediate level in Shanghai? - HCBBS Forum
18. Scope of predicted questions for the Technical Practice section of the 2015 Level 1 Certified Fire Engineer Examination - HCBBS Forum
19. 【Daily Question】2015.12.08 Safe voltage (2 wealth points for a reply; +3–8 wealth points if the answer is correct) - HCBBS Forum
20. Civil Engineering Structure Discussion Area ----【Daily Question】Question from the 20151208 issue - HCBBS Forum
21. 【Daily Question】December 09, 2015: Operation Methods of Centrifugal Pumps - HCBBS Forum
22. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 386 - HCBBS Forum
23. Puzzles in Aspen simulation of batch distillation - HCBBS Forum
24. I have some work experience; I’m thinking about changing careers and would appreciate some suggestions - HCBBS Forum
25. Can frequency signals be transmitted in the same way as 4-20mA signals? - HCBBS Forum
26. Natural cooling heat exchange - HCBBS Forum
27. In PID control, what is a self-balancing object? - HCBBS Forum
28. The world’s largest cluster of air separation units was recently completed - HCBBS Forum
29. 【Daily Question】12.13 Fill-in-the-blank question (2 wealth points for a reply + additional 3–8 wealth points for a correct answer) - HCBBS Forum
30. 【Daily Question】12.11 True or False (2 wealth points for replying, plus 3–8 wealth points for getting it right) - HCBBS Forum
31. Thought of coming up with a question - HCBBS Forum
32. Insufficient spacing between chemical workshops; fire-resistant partition water screens are required - HCBBS Forum
33. [Discussion Thread] [Daily Question] True or False: December 11, 2015 – The principle behind using a orifice plate flow meter to measure flow is based on throttling... - HCBBS Forum
34. Advantages and disadvantages of Yulong membrane and Kai membrane - HCBBS Forum
35. 【Daily Question No. 71】December 08, 2015: +2 wealth for participation, +3 to +8 wealth for correct answers - HCBBS Forum
36. Is feeding the MTBE reactor from below and discharging from above better than feeding from above and discharging from below? - HCBBS Forum
37. How to write a year-end summary for a catalytic cracking technician? - HCBBS Forum
38. Methanol-rich regeneration in the heat regeneration reflux tank of Linde cryogenic methanol wash - HCBBS Forum
39. 【Daily Question】12.15: Determine the relationship between polarization and corrosion (3 wealth points for a reply; +3 to –8 wealth points for a correct answer) - HCBBS Forum
40. Frequent changes in policies are Haichuan’s biggest flaw over the past two years - HCBBS Forum
41. Practical Guide to Control Valve Failures and Solutions - HCBBS Forum
42. 【Daily Question】 December 16 What is the purpose of transporting equipment oil? - HCBBS Forum
43. How to install the single-machine cracked version of SW6-2011V2.0? - HCBBS Forum
44. Sign-in record post from December 9, 2015 - HCBBS Forum
45. 【Daily Question】The installation requirement for stop valves is low inlet and high outlet (50 points for participation + 2 points for wealth). Deadline: 12/8/2015 - HCBBS Forum
46. How to determine the amount of stripping water for benzene extraction - HCBBS Forum
47. 【Daily Question】12.14 Multiple-choice question: What is the cause of pump cavitation in atmospheric and vacuum distillation units? - HCBBS Forum
48. Is a sight glass usually installed on a water seal tank? - HCBBS Forum
49. What is the difference between hard seal and soft seal? In what situations are they applied respectively? - HCBBS Forum
50. What is the green aqueous solution discharged from the flue gas outlet of the air preheater? - HCBBS Forum
51. Joint Learning*1209: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
52. Regarding the return temperature of heat transfer oil - HCBBS Forum
53. Design pressure of the equipment - HCBBS Forum
54. Product welding test plate - HCBBS Forum
55. Does an intelligent valve positioner have a torque motor? - HCBBS Forum
56. Where does the steam used in factories usually come from? - HCBBS Forum
57. In what types of locations are room-fired boilers mainly used? - HCBBS Forum
58. Configuration - HCBBS Forum
59. Does a steam trap qualify as an energy-saving and emission-reduction device? - HCBBS Forum
60. 【Daily Question No. 45】December 11, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
61. Regarding the head of the circulation pump - HCBBS Forum
62. 【Daily Question No. 46】December 16, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
63. How to maintain a steam trap when it is not in use for a long time - HCBBS Forum
64. Knowledge Warmth**: Selection of pressure gauges - HCBBS Forum
65. The heavy components at the top of the degassing tower are above the specified limit, and the light components at the bottom of the tower are also above the limit. What should be done? - HCBBS Forum
66. Execution standards for chemicals used in water treatment - HCBBS Forum
67. Sign-in record post from December 13, 2015 - HCBBS Forum
68. Material selection for chloride corrosion - HCBBS Forum
69. Corrosion due to flue gas acid dew point in waste heat recovery equipment - HCBBS Forum
70. 【Daily Question】Question from Issue 20151211 - HCBBS Forum
71. What should be noted when washing a gasoline sand filter tower? - HCBBS Forum
72. 20151213 One question per day - HCBBS Forum
73. 【Daily Question】Question from Issue 20151210 - HCBBS Forum
74. Some insights gained from over 20 years in the workplace - HCBBS Forum
75. Occupational Health Fill-in-the-Blank Question Bank - HCBBS Forum
76. Comprehensive analysis report on the multi-product, small-batch production model - HCBBS Forum
77. Material selection for the inlet pipeline of the drying tower - HCBBS Forum
78. Customers report that the melting point of the boron **ester** produced by the factory is on the high side - HCBBS Forum
79. PTFE reactor repair - HCBBS Forum
80. Everyone, work on these questions; there will be a reward for those who get them right. 114/2015 – First-Class Constructor Exam, \"Project Management\": Multiple-choice questions, 100 questions in total - HCBBS Forum
81. 【Daily Question】12.6 True or False: Lubricant viscosity (2 points for a reply + 3–8 points if the answer is correct) - HCBBS Forum
82. Is no one researching silica sols? - HCBBS Forum
83. Issues regarding the determination of lead content in naphtha by graphite furnace method - HCBBS Forum
84. Pressure relief issues in storage tanks - HCBBS Forum
85. Civil Engineering Structure Discussion Area ----【Daily Question】Question from the 20151212 issue - HCBBS Forum
86. Sign-in record post dated December 8, 2015 - HCBBS Forum
87. Share information on aerospace gasification furnaces - HCBBS Forum
88. How can a project manager hold effective progress meetings? - HCBBS Forum
89. 【Daily Question】December 16, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
90. What are the factors that cause the magnetic center line of a motor to shift? - HCBBS Forum
91. Joint Learning*1215: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
92. Undertake the design and drafting of GC-type pipelines - HCBBS Forum
93. Need help with a logic diagram! ! ! - HCBBS Forum
94. Regarding the selection of department managers - HCBBS Forum
95. Equipment insulation - HCBBS Forum
96. 【Daily Question】Chemical Engineering Principles 265: Right-Angled Trapezoidal Series (December 16) - HCBBS Forum
97. Distillation of 20% ammonia solution to produce liquid ammonia - HCBBS Forum
98. December 10th: True/False question No. 115 on boiler foundations: (A certain score will be given to the top 50 participants) - HCBBS Forum
99. Is it better to have 2 make-up water float valves or 1 for a circulating water cooling tower? - HCBBS Forum
100. How to choose the range for a water pump pressure gauge? - HCBBS Forum