English — Forum #723 (Page 497/642)

1. Magnetic flap level gauge - HCBBS Forum
2. After replacing the cutter head in a polyolefin pelletizer, how can one determine the relationship between rotational speed and feed pressure? I hope the experts can give some advice~ - HCBBS Forum
3. Problems with furnace drying in new sulfur production facilities - HCBBS Forum
4. What protective measures should be taken for port cranes in high-temperature conditions? - HCBBS Forum
5. I want to learn *about air coolers - HCBBS Forum
6. So autumn is divided into late autumn and early autumn? Is early autumn before late autumn? - HCBBS Forum
7. 【Daily Question】Question from Issue 20151011 - HCBBS Forum
8. Regarding the selection of two-legged and four-legged supports for DN3000 dust removal ducts - HCBBS Forum
9. Two issues regarding the distribution room in Zone 2 for explosive atmospheres and the outlets from that distribution room - HCBBS Forum
10. Do people who like bitter gourds and bitter coffee have dark hearts? - HCBBS Forum
11. Seeking advice on CAD drawing issues - HCBBS Forum
12. Check valve installation requirements - HCBBS Forum
13. What kind of dip pipe is used to load aviation kerosene onto trains? - HCBBS Forum
14. I was scammed out of 1,000 yuan yesterday. . . Sigh. . . - HCBBS Forum
15. Why should heat exchangers be placed as close to the ground level as possible in equipment layout? - HCBBS Forum
16. Post on salary payment for the September 2015 touring group - HCBBS Forum
17. Control method of the reboiler~ - HCBBS Forum
18. What is a circular economy? What are the advantages? - HCBBS Forum
19. Has the constructor certificate become worthless? ? - HCBBS Forum
20. Synthesis tower, pressure difference, reasons - HCBBS Forum
21. Slogan for front-line departments at the company sports day - HCBBS Forum
22. Stainless steel pipeline - HCBBS Forum
23. Corrosion issues of ethylene glycol aqueous solutions - HCBBS Forum
24. Compressor inlet air volume issue! - HCBBS Forum
25. Which has better resistance to seawater, brass or bronze? - HCBBS Forum
26. Heat exchanger material - HCBBS Forum
27. Particle size issue - HCBBS Forum
28. Discussion on the purging and design details of long-distance pipelines - HCBBS Forum
29. How should the primary air be adjusted during the ignition process of a circulating fluidized bed boiler? - HCBBS Forum
30. Regarding submersible pumps and self-priming pumps with automatic control, could someone please help answer these questions? - HCBBS Forum
31. Regarding which companies in China use the aldol condensation process relatively frequently - HCBBS Forum
32. Reasons for high hydrogen content in chlorine and emergency measures - HCBBS Forum
33. Maintenance of thermal shock test chambers - HCBBS Forum
34. Wastewater treatment for oil depots - HCBBS Forum
35. What are the precautions for starting a shielded pump? - HCBBS Forum
36. Welcome to participate in the discussion on registered examination sites: http://bbs.hcbbs.com/forum.php?mod=viewthread... - HCBBS Forum
37. Post-processing process characteristics of polypropylene - HCBBS Forum
38. How does everyone manage their finances? - HCBBS Forum
39. Zhongkong’s official latest training membrane (2015.07) - HCBBS Forum
40. Autonomous Control Theory* - HCBBS Forum
41. Fractionation heating furnace - HCBBS Forum
42. 【Daily Question】Question from Issue 20151014 - HCBBS Forum
43. Production of isobutylene from n-butane - HCBBS Forum
44. What is the quality of Teian labor protection kitchen shoes? - HCBBS Forum
45. Processing capacity calculation - HCBBS Forum
46. GB31570 has been implemented – can the exhaust emissions from Claus units meet the standards? - HCBBS Forum
47. Naphtha Price Summary Table (20151012) - HCBBS Forum
48. Cancellation of the qualification exam for consulting engineers (investment) and related examination fees - HCBBS Forum
49. Joint Learning*1015: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
50. Good sampling valves available in China - HCBBS Forum
51. KBC (petro-sim) software reactor Calibration discussion - HCBBS Forum
52. How does heat transfer occur between hot water and air in a cooling tower? - HCBBS Forum
53. Basis for determining the optimal oil-to-water ratio (O/A) for extraction - HCBBS Forum
54. The water in the tank is acidic wastewater; since steel sleeves cannot be installed, can plastic pipes be used instead? - HCBBS Forum
55. What is the impact of too rapid an inlet pressure drop on a centrifugal pump? - HCBBS Forum
56. One Question per Day, October 10, 2015 - HCBBS Forum
57. Selection of manual valves for steam systems - HCBBS Forum
58. For the determination of the caproic acid value, the color change of the indicator is not obvious; can another indicator be used? - HCBBS Forum
59. Can I eat while at work? ? ? ? Such as fruits, snacks, etc - HCBBS Forum
60. What are the maintenance requirements for the crane’s slewing support device? - HCBBS Forum
61. Refining furnace depleted copper slag - HCBBS Forum
62. Can valves made of 316 material be coated with tungsten carbide? ? - HCBBS Forum
63. 【Daily Question】Question from Issue 20151009 - HCBBS Forum
64. What does NE mean for a solenoid valve? - HCBBS Forum
65. Question 56 on boiler foundations, October 9: (A certain score will be given to the top 40) - HCBBS Forum
66. 【Daily Question】10.9-10.10 True or False: The purpose of water intermodal transport (+20 wealth) - HCBBS Forum
67. Environmental Protection Daily Quiz: Participate on 10.15 for prizes; 3 correct answers and another 3 prizes will be given - HCBBS Forum
68. Selection of physical property methods - HCBBS Forum
69. What components does a tray consist of? - HCBBS Forum
70. Dissolved oxygen in the anoxic tank - HCBBS Forum
71. Urgent! ! ! Aspen cannot draw - HCBBS Forum
72. UPVC and FRPP - HCBBS Forum
73. Installation location of the valve - HCBBS Forum
74. The amine solution in the acidic gas stream enters the sulfur production combustion furnace - HCBBS Forum
75. Opening reinforcement - HCBBS Forum
76. Spray anti-corrosion on the old mixer (urgent) - HCBBS Forum
77. Fundamentals of Chemical Engineering: One Question per Day – Heat Exchangers - HCBBS Forum
78. 【Daily Question】Question from Issue 20151010 - HCBBS Forum
79. Selection of FO and FC for control valves? - HCBBS Forum
80. What should you do and how should you react when you see people with physical disabilities or strange physical features begging on the street? - HCBBS Forum
81. Seeking recommendations for a cost-effective home laptop - HCBBS Forum
82. A 4-20mA analog signal is required with one input and three outputs (two-wire, passive); can this be achieved using two signal distributors with one input and two outputs each? - HCBBS Forum
83. What are the operating steps for the hot start of a circulating fluidized bed boiler? - HCBBS Forum
84. 【Daily Question】Wastewater Knowledge - 10-13 (2 points for an answer, 4 points for a correct answer) - HCBBS Forum
85. Basic Security Q&A: What do you think a security indicator is? - HCBBS Forum
86. Detect the total organic carbon TOC content in the solution - HCBBS Forum
87. Heat exchanger material for mixed acid - HCBBS Forum
88. Do methanogens have an adaptation period with different substrates? - HCBBS Forum
89. Joint Learning*109: Participation +2 wealth, Correct Answer +9 wealth - HCBBS Forum
90. Do anyone have any insights regarding the mixing process of urea aqueous solution with modified C? - HCBBS Forum
91. Workplace Debate Episode 66: Is it better for salaries to be transparent or kept private? (Plus 3 for participating in the reply... - HCBBS Forum
92. Replacement of distillation column trays - HCBBS Forum
93. Which heating method should be used in the reactor to heat the material to 550°C? - HCBBS Forum
94. Haiyou, did you receive it or not? - HCBBS Forum
95. Is chocolate off-limits for children? - HCBBS Forum
96. Naphtha aromatization - HCBBS Forum
97. Operation manual for the MOORE APACS system - HCBBS Forum
98. Problems with predictive control and underlying PID control - HCBBS Forum
99. Q&A on Safety Basics: What do you consider to be the main aspects of safety technology? - HCBBS Forum
100. How to learn* through Haichuan Forum, understand standards, solve engineering problems, and pass the design examiner exam - HCBBS Forum