English — Forum #723 (Page 587/642)

1. Dear experts, how do you say ‘main item number’ in English? - HCBBS Forum
2. What should I do if the SolidWorks model imported into Ansys is a single entity? - HCBBS Forum
3. Considerations for internal component corrosion - HCBBS Forum
4. AZBIL positioner calibration issue - HCBBS Forum
5. Why is pressure relief required for emergency shutdown reactions in hydrogenation? - HCBBS Forum
6. 【Daily Question】July 27: If pressure gauge failure is suspected, what is the most reliable method? - HCBBS Forum
7. What is the actual status of waste gas treatment technology in China? - HCBBS Forum
8. 【Daily Question】July 17 – Material Balance - HCBBS Forum
9. A foreigner sent me such a picture; I have a few basic questions and would like to get answers here first - HCBBS Forum
10. Please provide GB713-2014, thank you - HCBBS Forum
11. Irrigation to relieve heat~~~~~~~~~~~ - HCBBS Forum
12. Steam turbine extraction control issue - HCBBS Forum
13. Regarding the issue of managers working overtime - HCBBS Forum
14. What is the pH condition for the reaction of urea and formaldehyde to produce polyhydroxymethylurea? - HCBBS Forum
15. Requirements for parallelism and concentricity of the flexible connection flange at the water pump outlet - HCBBS Forum
16. Pressure pipeline class - HCBBS Forum
17. Jinling Petrochemical industrial wastewater turned into drinking water! ! ! ! - HCBBS Forum
18. How can an oil purification valve purify oil? - HCBBS Forum
19. Valve material - HCBBS Forum
20. Pneumatic valve maintenance - HCBBS Forum
21. Questions about the key points and uncertainties in reviewing feasibility study reports? Let’s all talk about it - HCBBS Forum
22. How effective is the type of distillation tower used for high-pressure operations in your plant? - HCBBS Forum
23. Dear seniors, I would like to ask if there are any specific **standards or guidelines** for the design of liquid ammonia pipelines and valves. - HCBBS Forum
24. Which marine engineer has the design guidelines for pressure vessels: Qi Guosheng or Duan Rui? - HCBBS Forum
25. Technical exchange on phenol product refining - HCBBS Forum
26. 【Daily Question】-104 (July 22) (Answer +2, Correct Answer +4) - HCBBS Forum
27. Safety issues to be mindful of when transporting vinyl chloride monomer - HCBBS Forum
28. Logarithmic mean temperature difference of the heat network heater - HCBBS Forum
29. The amount of oil injected by the oil injector - HCBBS Forum
30. Methanol enables long-term operation - HCBBS Forum
31. Solve it using numerical methods, please hurry, waiting online. - HCBBS Forum
32. Where can unregistered certificates be queried? - HCBBS Forum
33. The State Council issued the \"Decision on Repealing a Number of Professional Qualification Licenses and Certification Requirements\" - HCBBS Forum
34. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 257 - HCBBS Forum
35. Talk about how it felt when you smoked for the first time - HCBBS Forum
36. To improve boiler efficiency and achieve energy savings and increased productivity, what optimizations should be made to the boiler’s operating mode? - HCBBS Forum
37. Regarding the selection of catalysts - HCBBS Forum
38. Can convex and protruding flanges be connected? - HCBBS Forum
39. Problems with sleeve fluidization air - HCBBS Forum
40. Does a reaction kettle only experience vacuum during purging, or is it still necessary to use a pressure gauge that can display negative pressure? - HCBBS Forum
41. The issue of isolation gas in compressor dry gas seals - HCBBS Forum
42. 2013 Professional Knowledge Morning, Question 35 - HCBBS Forum
43. Treatment and Utilization of Sodium Bromide-Containing Wastewater from Rubber Factories – Bromine Extraction by Membrane Method - HCBBS Forum
44. High temperatures at the front and rear shafts of the high-voltage motor - HCBBS Forum
45. Relevant adjustments after the reduction and reasons - HCBBS Forum
46. Hydraulic diaphragm pump manufacturers - HCBBS Forum
47. 【Daily Question】July 28 – Questions on centrifugal pump knowledge (2 points for the first 80 participants; an additional 3–8 points for correct answers)... - HCBBS Forum
48. Problems in biochemistry and biotechnology – solutions! - HCBBS Forum
49. 【Daily Question】Chemical Engineering Principles 115: Temperature Difference Loss (July 20) - HCBBS Forum
50. Alcohol-based fuels and methanol fuels are open for discussion by everyone - HCBBS Forum
51. What methods are there to determine whether the trays in a distillation column have been washed out? - HCBBS Forum
52. The Hulunbuir Jinxin 5080 urea project has passed the acceptance inspection - HCBBS Forum
53. Technical discussion: Issues related to setting out construction coordinates - HCBBS Forum
54. Pneumatic pump – dry oil injection - HCBBS Forum
55. Help: What method should be used for the wax oil distillation curve in an oil refinery? - HCBBS Forum
56. Questions about steam pipes - HCBBS Forum
57. Weekly topic is back again! Those who answer correctly receive 8 wealth points, while those who participate receive 2 wealth points ； Question 121! - HCBBS Forum
58. Can charm not be exchanged for wealth? - HCBBS Forum
59. Questions regarding obtaining the certificate for registered chemical engineers - HCBBS Forum
60. The question is a bit difficult; it relates to stress - HCBBS Forum
61. Nozzle of tubular heating furnace - HCBBS Forum
62. How are the distillation section and the stripping section of a distillation column divided? - HCBBS Forum
63. 【Daily Question】July 21: What temperature of gasoline indicates its acceleration performance in an engine? - HCBBS Forum
64. Tube welding issues, please help - HCBBS Forum
65. Caesar 2 2013 installation issues - HCBBS Forum
66. Why do electromagnetic flowmeters exhibit large fluctuations when there is no flow? - HCBBS Forum
67. Polymer and Materials Discussion Board - Weekly Topic Summary Thread - HCBBS Forum
68. The effect of ferrous sulfate as a coagulant - HCBBS Forum
69. Brothers and sisters, who has a cracked version of the COMSOL Multiphysics software? - HCBBS Forum
70. Exhaust gas from heat transfer oil furnaces - HCBBS Forum
71. Selection principles for diaphragm-type control valves and cylinder-type control valves - HCBBS Forum
72. What is the maximum capacity of a single methanol storage tank? - HCBBS Forum
73. Dear leaders: The “reminder” function is not working properly; I’m not sure what the reason is - HCBBS Forum
74. Regarding degreasing of oxygen-enriched pipelines - HCBBS Forum
75. Liquid enthalpy table - HCBBS Forum
76. I would like to ask about the methods for treating wastewater from chloroform manufacturers, as well as the precautions regarding chloroform - HCBBS Forum
77. Pump head - HCBBS Forum
78. How to separate spherical particles around 1 micron in industry - HCBBS Forum
79. Is arsenic in copper electrolytes present in the form of pentavalent arsenic acid? - HCBBS Forum
80. On-site drilling of stainless steel pipes - HCBBS Forum
81. E+H radar and FOXBORO pH meter - HCBBS Forum
82. Looking for information on the internal structure of molecular sieve nitrogen generators - HCBBS Forum
83. Fluctuations in the first-stage evaporation of urea; the cause cannot be identified - HCBBS Forum
84. Internet of Things and Automatic Control Systems - HCBBS Forum
85. Coal chemical PP and PE plants – recycle gas compressors - HCBBS Forum
86. How to generate the nozzle verification file for CAESAR II -- in **.610 format - HCBBS Forum
87. Height of the level gauge - HCBBS Forum
88. What are the reasons for the increase in vibration levels of cooling tower fans? - HCBBS Forum
89. Regarding the ethylene oxide transfer process - HCBBS Forum
90. The issue of “activating a membership” that Hai Chuan just dealt with - HCBBS Forum
91. Regarding the issue of caustic soda evaporation - HCBBS Forum
92. Questions regarding information on water injection for the air cooling system of hydrogenation units - HCBBS Forum
93. Discussion on pipeline connection issues with threaded centrifugal pumps - HCBBS Forum
94. Regarding the selection of the location for the foot bolt holes in the ear seat base plate - HCBBS Forum
95. Fluctuations in the liquid level of the steam condensate tank behind the low reboiler in the MDEA desulfurization regeneration tower - HCBBS Forum
96. Treatment of odors, thiols, sulfides, etc - HCBBS Forum
97. How to dispose of the alkaline residue resulting from the desulfurization of liquefied gas? - HCBBS Forum
98. For high-temperature oil and gas at over 400 degrees, various experts use circulating water for heat exchange; U-tube heat exchangers are chosen, with the tube side and shell side typically being selected as… - HCBBS Forum
99. How to prevent gases from having an impact on the buffer tank? - HCBBS Forum
100. Two-chamber balanced level gauge, backflushing level gauge - HCBBS Forum