English — Forum #723 (Page 388/642)

1. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 414 - HCBBS Forum
2. Reasons why valves with small diameters are easy to open - HCBBS Forum
3. Environmental Protection Daily Quiz: 1.24 – Participate for prizes; 3 correct answers earn an additional 5 prizes - HCBBS Forum
4. Discuss how to carry out oil removal, corrosion inhibition, sterilization, and scale removal treatment for oil field wastewater - HCBBS Forum
5. What is the function of the deoxidation tower in a continuous reforming unit? - HCBBS Forum
6. How to effectively prevent lightning strikes in electric screw air compressors - HCBBS Forum
7. 【Daily Topic】【Live Version 20160120】 - HCBBS Forum
8. I’m a newcomer; please give me some guidance - HCBBS Forum
9. 【Daily Question】1/12/2016: Participation = +2 wealth； +3 to 8 wealth for correct answers - HCBBS Forum
10. 【Daily Question】2016 1.19 Multiple-choice question When fuel gas is discharged into the drain, it is necessary to strictly comply with ( .. - HCBBS Forum
11. How to handle ammonium bisulfate generated after ammonia injection for SCR denitration? - HCBBS Forum
12. That’s how good luck comes about - HCBBS Forum
13. ANSYS Workbench container modeling example - HCBBS Forum
14. What does the letter B in the bolt BM64*370 stand for? - HCBBS Forum
15. How are LLDPE vapor-phase catalysts recovered? - HCBBS Forum
16. Is Lawson undergoing another inspection? - HCBBS Forum
17. Reason for polymer in the overhead of the pure styrene column - HCBBS Forum
18. I would like to ask: What types of level gauges are suitable for liquids that crystallize easily? - HCBBS Forum
19. Urea: Will capacity really be reduced so quickly? - HCBBS Forum
20. Urgent! There is a problem with the valve; I request the expert’s help to resolve it! ! ! - HCBBS Forum
21. Is public bidding required for the outsourcing of inspection, maintenance, and repair services? - HCBBS Forum
22. How to address the high pH value in the purified water after acidic water stripping? - HCBBS Forum
23. 【Petroleum and Chemical Activities】Petroleum and Chemical Promotion Team’s “Love Him/Her” Warmth Campaign - HCBBS Forum
24. Regarding the wall thickness of heat exchange tubes! - HCBBS Forum
25. Difference between deviation and residual - HCBBS Forum
26. What are the differences in the failure modes of internal pressure cylinders and external pressure cylinders? In which parts of pressure vessels can stability problems occur? Why? - HCBBS Forum
27. Questions regarding hydrogen production processes - HCBBS Forum
28. The problem of heating conductive fluids by electromagnetic waves - HCBBS Forum
29. Should the safety valve of a liquefied gas desulfurization tower be installed at the top of the tower or in the middle of it? - HCBBS Forum
30. Calculate the consumption for the purification of aqueous salt solution - HCBBS Forum
31. Integrated desulfurization and denitration - HCBBS Forum
32. 【Daily Question No. 99】January 18, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
33. In life, integrity comes first; in dealing with others, honesty comes first; in doing tasks, diligence comes first - HCBBS Forum
34. Colleagues, could anyone provide information on the domestic sales and after-sales channels for ABB K-TEK level gauges? - HCBBS Forum
35. How to connect cables of 1kV YJV-3*50+1*25 together? - HCBBS Forum
36. 2015 Annual Review and Outlook on Coal-to-Synthetic Natural Gas (SNG) in China - HCBBS Forum
37. Questions regarding the sealing of ordinary centrifugal pumps and bearing box cooling! - HCBBS Forum
38. How to prevent scaling in air compressor filters - HCBBS Forum
39. Is the centrifuge’s processing capacity calculated based on continuous operation or intermittent operation? - HCBBS Forum
40. Pushing against the compressor pipes - HCBBS Forum
41. Registration portal and guidelines for consulting exams in 2016 - HCBBS Forum
42. 【Picture of the Day】2016 1.21 What device is shown in this picture? - HCBBS Forum
43. 【Daily Question】January 14, 2016: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
44. Cost of hydrogenation for gasoline and diesel - HCBBS Forum
45. Price of Chuanyi electric control valves - HCBBS Forum
46. Why is a 50-mm opening made in the tower of the flue gas desulfurization tower in the light hydrocarbon recovery unit, along with a reducer, to discharge the light contaminated oil from the bottom of the tower? - HCBBS Forum
47. Storage of ion-exchange resins - HCBBS Forum
48. What material should be used for storage tanks containing around 8% sodium hypochlorite? - HCBBS Forum
49. 20160117 One question per day - HCBBS Forum
50. 【Picture of the Day】2016 1.15 What device is shown in this picture? - HCBBS Forum
51. Can anyone find used parts for Emerson mass flow meters? Used or scrapped ones will do as well - HCBBS Forum
52. Static electricity elimination in non-metallic storage tanks - HCBBS Forum
53. How to use a small software in CAD to directly draw the tube arrangement diagram of a heat exchanger - HCBBS Forum
54. Let’s work on the questions: 2015 Level 1 Certified Fire Engineer – Technical Practice, Questions 11-12 - HCBBS Forum
55. Vertical pipe, valves, center distance DN40 - HCBBS Forum
56. Connection of equipment made from different materials - HCBBS Forum
57. 【Active participation for mutual improvement: 1.16–1.22 – +2 for participation, +3~10 for correct wealth】 - HCBBS Forum
58. Does the outer wall of a gas-flow bed furnace with water-cooled walls need insulation? Why? - HCBBS Forum
59. What to do if the oil temperature in the expansion tank of a heat transfer oil furnace is high? - HCBBS Forum
60. Can a nitrogen valve be used to deliver hydrogen? - HCBBS Forum
61. 【Daily Topic】【Quality Version 20160115】 - HCBBS Forum
62. Valves – what is the minimum possible distance between the centers of two valves? - HCBBS Forum
63. Problems with the compressor volute - HCBBS Forum
64. Division of labor for process pipeline maintenance - HCBBS Forum
65. 【Daily Question】2016 1.16 Multiple-choice question Which of the following options is not a typical equipment in the reaction system of a hydrogenation unit?.. - HCBBS Forum
66. Seeking help: Why does the motor current of each pump in the MTBE plant increase after operating under certain process conditions for a period of time? - HCBBS Forum
67. Polyimide—monomer synthesis, polymerization methods, and material preparation - HCBBS Forum
68. What are the typical ranges for the flash point, ignition point, and auto-ignition point of Changyi No.1 oil? - HCBBS Forum
69. Formulas for calculating the pressure boiling points of propane and butane - HCBBS Forum
70. Can a self-acting valve in a heating furnace’s gas pipeline be purged with steam? - HCBBS Forum
71. Fluorine-lined thermistor thermometer - HCBBS Forum
72. What to do if it’s impossible to estimate the binary interaction parameter? - HCBBS Forum
73. Selection of metal wound gaskets for RF face flanges - HCBBS Forum
74. Selection and operation of valves - HCBBS Forum
75. 【Daily Topic】【Civil Engineering Version 20160115】 - HCBBS Forum
76. Seeking advice on corrosion protection for pipe trunking frames - HCBBS Forum
77. It’s getting cold; air compressor users are asked to be extra careful - HCBBS Forum
78. 【Picture of the Day】2016/1/19 What is the device in this picture? - HCBBS Forum
79. Haichuan Thanksgiving Season – The Teacher of Life, My Father【Workplace 012】 - HCBBS Forum
80. Reasons for the load reduction in circulating fluidized bed boilers - HCBBS Forum
81. Looking for manufacturers of sodium methoxide reactors - HCBBS Forum
82. “\"HaiChuan Gratitude Season\": Thank You to My First Manager [Process Region 002] - HCBBS Forum
83. How are everyone preparing for the English exam in March? - HCBBS Forum
84. Sign-in record post from January 20, 2016 - HCBBS Forum
85. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 423 - HCBBS Forum
86. Flow meter selection - HCBBS Forum
87. 【Daily Question】1.21 Fill-in-the-blank: Common reflux methods include - HCBBS Forum
88. Installation issues of stirrers in fiberglass-reinforced plastic tanks - HCBBS Forum
89. How to ensure the instruments survive the winter - HCBBS Forum
90. The A2O process is used to treat domestic wastewater; there is no oil separation tank. Does the presence of diesel in the influent affect the removal of ammonia nitrogen? - HCBBS Forum
91. Sign-in record post from January 19, 2016 - HCBBS Forum
92. 【Picture of the Day】Special Program: Talking About Pictures on 1.12 - HCBBS Forum
93. Fire handling in high-temperature areas - HCBBS Forum
94. Multiple-choice questions: Those who are highly involved in occupational health, promote awareness of it, and actively participate receive high bonuses - HCBBS Forum
95. Remember: factor relationship - HCBBS Forum
96. Total methanol demand is set to increase in 2016; be cautious of fluctuations caused by olefins - HCBBS Forum
97. 【Daily Question】1.17 Multiple-choice question: Chemical enterprises have various methods for wastewater treatment, and among them, chemical treatment methods include ( ... - HCBBS Forum
98. Wastewater treatment system UASB+SBR - HCBBS Forum
99. Issues with opening holes in pressure vessel measurement points - HCBBS Forum
100. I need the operating procedures for the coal coking oil and gas recovery section - HCBBS Forum