English — Forum #723 (Page 471/642)

1. Location of high-pressure air compressor room - HCBBS Forum
2. Regarding the feed backwash filter. - HCBBS Forum
3. Could you recommend some practical magazines on instrument automation? - HCBBS Forum
4. Why is there no A412 electrode in NB-T47018.2-2011? - HCBBS Forum
5. 【Daily Question No. 46】November 03, 2015: +2 wealth for participation, +3 to +8 wealth for correct answers - HCBBS Forum
6. Principle of activated carbon filtration - HCBBS Forum
7. Which is the best domestic level gauge? - HCBBS Forum
8. Sign-in record post from November 1, 2015 - HCBBS Forum
9. Urgent need! Find the calculation formula for carbon monoxide medium orifice flow meters (including temperature and pressure compensation) - HCBBS Forum
10. Sinopec’s application for on-site hazardous waste treatment for 8 billion cubic meters of coal-derived gas - HCBBS Forum
11. How to practice spoken English? Methods are important! - HCBBS Forum
12. Issues regarding collaborative research, development, and production in chlor-alkali chemical enterprises - HCBBS Forum
13. In Caesar II software, how do you enter the values to represent large pipes supporting smaller pipes? - HCBBS Forum
14. Everyone, let’s work on question 29 of the 2015 First-Class Constructor Exam – multiple-choice questions 31-32 from the \"Engineering Economics\" section; there will be a reward for those who answer correctly - HCBBS Forum
15. Universiade etiquette volunteers trained to the standards of flight attendants (photos) - HCBBS Forum
16. Advantages (disadvantages) of controlling the low (high) liquid level in the distillation column bottom tank - HCBBS Forum
17. Current status of ethylene development at home and abroad - HCBBS Forum
18. During normal production, does the brine flow from the [brine high-level tank] to the electrolyzer? - HCBBS Forum
19. Everyone, let’s work on question 34-2: multiple-choice questions 41-43 from the 2015 First-Class Constructor Examination in Engineering Economics. There are rewards for correct answers - HCBBS Forum
20. Specifications for gaskets inside heat exchangers - HCBBS Forum
21. Introduction to the specifications and dimensions of hex key wrenches - HCBBS Forum
22. Operating experience with Xi’an Sanrui rotary kilns - HCBBS Forum
23. Summary post of useful tips for using Excel tables in computer resource versions - HCBBS Forum
24. Is there an outlet valve at the top of the distillation tower? - HCBBS Forum
25. Treatment of electrolytic lean solution - HCBBS Forum
26. How to determine the saturated vapor pressure of water vapor after it is mixed with gases? - HCBBS Forum
27. The PVC market remains stagnant with poor prospects - HCBBS Forum
28. 【Daily Question】Question for Issue 20151028 - HCBBS Forum
29. Ways to increase gasoline octane number - HCBBS Forum
30. I have 2 questions regarding the Bernoulli equation - HCBBS Forum
31. Overpressure in the booster pump - HCBBS Forum
32. What is the acetic acid solution used for in the Gavnik 903 hydrogen sulfide analyzer? - HCBBS Forum
33. What kind of instrument is the TDC instrument? - HCBBS Forum
34. Request for diesel hydrogenation hydrogen interruption plan - HCBBS Forum
35. How to simulate the density of a substance using PROII? - HCBBS Forum
36. Heat exchange area calculation software - HCBBS Forum
37. Corrosion issues in titanium coolers - HCBBS Forum
38. The amount of hydrogen mixed in during pre-hydrogenation suddenly decreased - HCBBS Forum
39. October 27, Question 73 on Boiler Foundations: (A certain score will be given to the top 40) - HCBBS Forum
40. How to control the speed of the methanol wash cooling pump - HCBBS Forum
41. Requirements for the First-Class Constructor Examination - HCBBS Forum
42. How to shut down a circulating fluidized bed boiler? - HCBBS Forum
43. CS3000 PTC - HCBBS Forum
44. The supernatant of electroplating wastewater turns milky white after aeration - HCBBS Forum
45. sulfuric acid - HCBBS Forum
46. Which submersible sewage pump is resistant to salt corrosion? - HCBBS Forum
47. Regarding the distillation column issue - HCBBS Forum
48. Calculation method for recovery rate - HCBBS Forum
49. Issues to consider when using high-sulfur coal in GE water-coal slurry gasification - HCBBS Forum
50. Selection of CNG stainless steel pipes - HCBBS Forum
51. What are the differences between methanol-water, ethanol-water, and ethylene glycol-water solutions as cooling and heating media? - HCBBS Forum
52. SAP technology provider - HCBBS Forum
53. What is lost was once possessed; what is possessed will be lost in the future! - HCBBS Forum
54. Interlock control of two air compressors - HCBBS Forum
55. The liquid oxygen level in the main condensation evaporator of the air separation unit fluctuates sharply during winter - HCBBS Forum
56. How can pressure vessels be classified according to pressure levels? - HCBBS Forum
57. After the rectifier transformer trips, why does the alkaline solution have to be routed to the cathode tank cooler (single tank)? - HCBBS Forum
58. Requirements for welding materials for R-HIC plates - HCBBS Forum
59. How to improve oneself - HCBBS Forum
60. 2015.10.28 True or False Questions - HCBBS Forum
61. 【Daily Question】Chemical Engineering Principles 224: Distillation Columns (November 5) - HCBBS Forum
62. I would like to ask about naphtha and residue oil - HCBBS Forum
63. What is the maximum size of internal/external floating roof tanks currently built in China? - HCBBS Forum
64. Questions regarding electrode and wire grades and models - HCBBS Forum
65. 【Daily Question】10.30 True or False: In a vacuum distillation column, it is desirable for the pressure drop across each tray to be as low as possible - HCBBS Forum
66. With each autumn rain comes the chill; negative-grade diesel is gradually being made available on the market - HCBBS Forum
67. Schematic representation of solenoid valve control in PID - HCBBS Forum
68. What is the function of the reformation deoxygenation tower? What is the mechanism? - HCBBS Forum
69. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 344 - HCBBS Forum
70. How should entities that cause environmental pollution and other public nuisances be punished? - HCBBS Forum
71. Is the reason for the insufficient air volume of the water ring vacuum pump that the pump’s rotation speed is too low? - HCBBS Forum
72. Issues with the liquid level in horizontal acidic gas separation tanks - HCBBS Forum
73. I would like to ask about the salary prospects in the chemical engineering design industry - HCBBS Forum
74. Diesel-cetane number improver – dosage – are there any limits? - HCBBS Forum
75. I would like to ask the teachers for advice on the strain domestication of high chloride ions! - HCBBS Forum
76. Improvement in safety - HCBBS Forum
77. Question: Which standard for controlling the clearance in sliding bearings is the most authoritative? - HCBBS Forum
78. Why is it particularly important to pay close attention to changes in the catalyst chlorine content of the last reforming reactor during operation? - HCBBS Forum
79. The conversion production process flow of semi-water gas, catalysts, and key equipment – an introduction to the conversion furnace - HCBBS Forum
80. Where can I find ASTM materials domestically? - HCBBS Forum
81. There is a significant amount of water in the oil stream from the first stage of the atmospheric pressure tower - HCBBS Forum
82. What are the precautions when using a luggage roller drop test machine? - HCBBS Forum
83. Oil (lubricant) pipeline, high pressure – what valve should be used? - HCBBS Forum
84. Recruitment for chemical instrumentation and chemical process specialties - HCBBS Forum
85. Things to clearly state when reporting a fire - HCBBS Forum
86. How many manufacturers still produce reciprocating compressor valve assemblies? - HCBBS Forum
87. Seeking advice on pipe material selection for chemical plant areas - HCBBS Forum
88. How to understand subcooled liquid? - HCBBS Forum
89. Is there an optimal length-to-diameter ratio for heat pipes? - HCBBS Forum
90. Falling film evaporator - HCBBS Forum
91. What is the difference between LCP and LCF pumps? - HCBBS Forum
92. What should be noted when conducting pressure tests on tower-type equipment? - HCBBS Forum
93. I’m looking for some pictures of reactors - HCBBS Forum
94. I need a copy of the GBZ188-2014 standard - HCBBS Forum
95. 【Daily Question】Question from Issue 20151027 - HCBBS Forum
96. Is the eccentric double-shoulder pipe clamp considered a non-standard item in GB/T14383? - HCBBS Forum
97. Layout scale issue - HCBBS Forum
98. How do you understand the hazard identification process? - HCBBS Forum
99. Issues with gaskets for fasteners on container flanges in U-tube heat exchangers? - HCBBS Forum
100. Sign-in record post from October 30, 2015 - HCBBS Forum