English — Forum #723 (Page 408/642)

1. The authoritative definition of volatile media - HCBBS Forum
2. Instrument failure - HCBBS Forum
3. Development history of the SMTO process - HCBBS Forum
4. Pipeline corrosion replacement - HCBBS Forum
5. How to deal with high water content in gasoline etherification units - HCBBS Forum
6. Fans are general-purpose devices with high demand; what criteria do people consider when choosing fans? - HCBBS Forum
7. Not lowering oil prices because of fog? - HCBBS Forum
8. 2016 exam information - HCBBS Forum
9. How to write an explanation regarding the provision of personal protective equipment - HCBBS Forum
10. Safety requirements for factory layout - HCBBS Forum
11. What is the impact of air separation with and without argon on nitrogen purity and yield? - HCBBS Forum
12. Pneumatic cut-off valve fault condition - HCBBS Forum
13. The COD concentration of the water entering the enterprise is 6000; after micro-electrolysis, it drops to 4200. What is the appropriate dosage of Fenton’s reagent? The water will then proceed to the next stage... - HCBBS Forum
14. Tar distillation! - HCBBS Forum
15. 【Daily Question】12.27 Fill-in-the-blank question on stainless steel 302B (3 wealth points for a reply + additional 3–8 wealth points for a correct answer) - HCBBS Forum
16. Was the Registration Safety Engineer exam canceled in 2016? - HCBBS Forum
17. Thickness issues of the bottom plate, side plates, and top plate of a 10,000 m3 crude oil tank - HCBBS Forum
18. Three Siemens PLCs are all reporting BF and SF errors at the same time, what’s going on? - HCBBS Forum
19. 6 effective ways to improve spoken English – truly useful tips - HCBBS Forum
20. Civil Engineering Structure Discussion Area ----【Daily Question】Question from the 20151222 issue - HCBBS Forum
21. Heat exchange tube issues in similar products - HCBBS Forum
22. 【Daily Question】2015.12.23 Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
23. How much do you know about the small details that reveal a person’s drinking habits and character at drinking gatherings? - HCBBS Forum
24. Which specifications should be referred to for the construction and acceptance of UPVC pipes? Please help - HCBBS Forum
25. Carrot harvester - HCBBS Forum
26. What to do when there is no understanding, no cooperation, and stubbornness? - HCBBS Forum
27. Has the Lucky Points event for this month ended? - HCBBS Forum
28. What is the difference between \"over-wetting\" and \"chlorine deficiency\" in continuous reforming catalysts? - HCBBS Forum
29. On the morning of the 18th, a fire broke out suddenly in a chemistry laboratory at Tsinghua University, resulting in the death of one postdoctoral researcher. - HCBBS Forum
30. Can the flange be welded again? - HCBBS Forum
31. 【Weekly Topic】12.21 2016 is approaching soon. What are your plans for the new year? Feel free to share them with everyone! - HCBBS Forum
32. ASME B18.2.1 - HCBBS Forum
33. Looking for recommendations for throttle valves suitable for low pressure differences - HCBBS Forum
34. 【Daily Topic】【Engineering Version 20151223】 - HCBBS Forum
35. 【Daily Question】Chemical Engineering Principles 269: Ion Exchangers (December 19) - HCBBS Forum
36. Heat transfer coefficient K - HCBBS Forum
37. When shopping at the supermarket, I’m just 0.44 short of getting a shopping bag - HCBBS Forum
38. Online acidity testing equipment - HCBBS Forum
39. The issue of leak detection for equipment valves - HCBBS Forum
40. May I ask which design institute was responsible for designing the main facilities of Lanzhou Refinery? Thank you - HCBBS Forum
41. The evolutionary history of butterfly valves - HCBBS Forum
42. Acrylic wastewater is difficult to treat; what is the appropriate treatment process? - HCBBS Forum
43. Valve, elbow hydraulic loss - HCBBS Forum
44. Problems with methanation catalysts in Datang Keqi - HCBBS Forum
45. Requirements for the specifications of power cables during air conditioner installation - HCBBS Forum
46. In the fractionation tower, the dry point of gasoline is high while the flash point of diesel is low, resulting in overlapping product ranges - HCBBS Forum
47. What is the carrier for hydrogen methanation catalysts? - HCBBS Forum
48. How to deal with large frozen coal clumps in coal storage bins during winter in the northeast - HCBBS Forum
49. 【Daily Topic】【Storage & Transportation Edition 20151217】 - HCBBS Forum
50. Honeywell Configuration Studio cannot connect to the C200 controller - HCBBS Forum
51. Dry gas desulfurization tower - HCBBS Forum
52. Who has spare coke oven heating and temperature measurement equipment? - HCBBS Forum
53. Does a plate heat exchanger fall under the category of pressure vessels? - HCBBS Forum
54. Issues regarding mechanical connection fittings for steel wire mesh reinforced plastic composite pipes - HCBBS Forum
55. Liquid nitrogen cooling box, gas-sealed tube - HCBBS Forum
56. 【Daily Question】12.23 Multiple-choice Question: Commonly used sealing surfaces include - HCBBS Forum
57. 【Daily Question】 January 6 A globe valve consists of ( ), a disc, a stem, a bonnet, a handwheel, packing, and a seal... - HCBBS Forum
58. What should be done if there is always a delay in temperature control due to the interlock between the temperature control valve and the thermometer? - HCBBS Forum
59. Failed the intermediate professional title exam - HCBBS Forum
60. There is information on electromagnetic flowmeters - HCBBS Forum
61. What does “thck sp-wd ss” mean in a gasket? - HCBBS Forum
62. Gurus everywhere, help! ! - HCBBS Forum
63. Low oxygen pump start-up current setting triggers trip interlock - HCBBS Forum
64. I got deducted points – is my vision blurry? - HCBBS Forum
65. Cost Engineer Certificate - HCBBS Forum
66. Seeking help with butylene isomerization - HCBBS Forum
67. Is the flow rate measured by a differential pressure flow meter the same as that measured by an ultrasonic flow meter? - HCBBS Forum
68. Regarding the filter model issue - HCBBS Forum
69. Civil Engineering Structure Discussion Area ----【Daily Question】Question from the 20151224 issue - HCBBS Forum
70. Are thermocouples and thermal resistors of the Rosemount, Siemens, and Yokogawa brands manufactured in China? - HCBBS Forum
71. Selection of material parameters for copper-nickel pipelines - HCBBS Forum
72. Environmental Protection Daily Quiz 12.23: Participate for prizes; 3 correct answers and another 3 prizes will be given - HCBBS Forum
73. Should the longitudinal and transverse elevations of the pipes in the entire system be staggered? - HCBBS Forum
74. Is there anyone from Chengde Petroleum College in the forum? - HCBBS Forum
75. 【Daily Question】Chemical Engineering Principles 271: Boiler Startup (December 22) - HCBBS Forum
76. 【Daily Topic】【Engineering Version 20151222】 - HCBBS Forum
77. Is there a grade called 0Cr19Ni9? - HCBBS Forum
78. 【Picture of the Day】12.22 What equipment is being lifted in this picture? - HCBBS Forum
79. Installation sequence of solenoid valve and filter pressure regulator - HCBBS Forum
80. How to improve the heat exchange efficiency of coiled tubes? - HCBBS Forum
81. 【Daily Question No. 54】December 28, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
82. How to calculate and select a foam-breaking net - HCBBS Forum
83. 【Daily Question】12.26 Definition: Conductivity - HCBBS Forum
84. What material with wear resistance should be used for lime milk pipelines? - HCBBS Forum
85. Definition of the straight sections before and after the throttling device – is the presence of weld seams allowed? - HCBBS Forum
86. Control valve, automatic, manual, cascade - HCBBS Forum
87. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 401 - HCBBS Forum
88. Use of check valves in water ring vacuum pumps - HCBBS Forum
89. Can an engineer in Beijing be promoted to senior engineer after 3 years? What conditions are required? - HCBBS Forum
90. Is the liquefaction of CO2 by air separation feasible? - HCBBS Forum
91. 【Daily Question】12.16 True or False: Criteria for cutting lubricant base materials - HCBBS Forum
92. I would like to ask if anyone knows of filters that can remove hydrogen, oxygen, and iron oxide - HCBBS Forum
93. Issues with the chillers in F22 - HCBBS Forum
94. What to do if I lose my professional English certificate - HCBBS Forum
95. Is the question whether a container with a jacket or coils counts as a pressure vessel? - HCBBS Forum
96. Problem of rising temperature in the seal oil tank after the seal oil pump of the catalytic unit is started - HCBBS Forum
97. [Transfer - New skill acquired] - HCBBS Forum
98. The issue of concentrated ammonia water in coking - HCBBS Forum
99. Regarding the plan to heat the reactor! - HCBBS Forum
100. Piping diagram Valves - HCBBS Forum