English — Forum #723 (Page 3/642)

1. Progress of the Zhongtian Hechuang project in Wushen Banner, Ordos - HCBBS Forum
2. What effect will it have on the meter if the vortex flowmeter and the inner diameter of the pipe connected to it are different? - HCBBS Forum
3. 【Q&A Question 133】2016.08.31 - HCBBS Forum
4. Acid cleaning and passivation of refrigerant pipes - HCBBS Forum
5. Question 64 under the 2011 specialty - HCBBS Forum
6. GB/T 31708-2015 Safety of sports products – Guidelines for risk assessment - HCBBS Forum
7. The role of wealth value - HCBBS Forum
8. Interpretation of pipeline numbers - HCBBS Forum
9. Thank you for Father’s Day - HCBBS Forum
10. What is the function of a centrifuge gasket? - HCBBS Forum
11. What is the purpose of that temperature automatic regulator at the pump outlet of the water station in a reciprocating compressor? - HCBBS Forum
12. 【Weekly Topic】【HVAC Version 20160801】 - HCBBS Forum
13. Morning Thoughts - HCBBS Forum
14. “Announcement for the award ceremony of the “Discussion on Key Examination Points in Chemical Engineering” event – 【Distillation】 theme - HCBBS Forum
15. Storage of fire protection pipelines in winter - HCBBS Forum
16. Where is the maximum stress on the roof of a 3000 cubic meter arch-shaped tank? - HCBBS Forum
17. Briefly describe the requirements for overhauling plate towers? - HCBBS Forum
18. Which is better, a breathing manhole or an emergency vent manhole cover? - HCBBS Forum
19. What does “hold” mean in the alarm interlock process? Urgent! Urgent! Urgent! ! - HCBBS Forum
20. Should the hydrostatic test value be rounded? - HCBBS Forum
21. Count how many people did not write the answer to the case in the parentheses - HCBBS Forum
22. Characteristics and installation requirements of K-type thermocouples - HCBBS Forum
23. Xiaobai wants to know how to analyze this logic - HCBBS Forum
24. Power supply issues with 3-phase 4-wire incoming distribution cabinets - HCBBS Forum
25. Regarding the cultivation of nitrifying bacteria in the activated sludge process? - HCBBS Forum
26. Does butane have a corrosive effect on copper? - HCBBS Forum
27. For newlyweds, who do you think makes better food, the husband or the wife? - HCBBS Forum
28. 【Q&A Question 163】2016.09.30 - HCBBS Forum
29. What is the impact of the ammonia content in the lean methanol from low-temperature methanol washing on the system, and what are the control methods? - HCBBS Forum
30. April 13, 2016 – One Question per Day, Catalysis Section: Continuous Reforming Regenerator Charring Test - HCBBS Forum
31. Working principle of the drop test machine - HCBBS Forum
32. Could some teacher please give some advice on ways to cool down methanol tanks in summer? - HCBBS Forum
33. Longitudinal crack in membrane wall - HCBBS Forum
34. Why don’t I get a salary in October? - HCBBS Forum
35. Mechanical seal mapping - HCBBS Forum
36. Huangtai circulating fluidized bed gasifier - HCBBS Forum
37. Daily Question 2016.8.6 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question) - HCBBS Forum
38. Who can explain the principle of the following cage-type control valve? - HCBBS Forum
39. Prepare emergency response plans, handle registration for hazardous materials, and provide consultation on safety standardization - HCBBS Forum
40. 【Daily Question No. 50】December 22, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
41. I would like to ask whether seamless steel pipes can be used in the carbon removal process in ammonia synthesis - HCBBS Forum
42. There is a resistance of 6 ohms between points b and c of the thermistor; this is a problem, right? - HCBBS Forum
43. 【Daily Question】Question from Issue 20150806 - HCBBS Forum
44. 4 common odor removal methods for sewage treatment plants - HCBBS Forum
45. What are the allowable stresses of stainless steel pipes such as 304, 316, and 316L at different temperatures? ? - HCBBS Forum
46. Desorption tower, hot and cold feed. When to use the cold route and when to use the hot route - HCBBS Forum
47. Can a breathing valve be installed on a pipeline to prevent siphoning? - HCBBS Forum
48. 【Daily Question】Question from Issue 20151016 - HCBBS Forum
49. What is the heat flux density of circulating cooling water? - HCBBS Forum
50. Are there any regulations regarding the service life of pressure vessels? - HCBBS Forum
51. Xiamen University is recruiting R&D engineers, requiring a PhD - HCBBS Forum
52. 【Daily Topic】【HVAC Version 20160917】 - HCBBS Forum
53. 【Daily Question】Chemical Engineering Principles 307: Condensate Water Treatment (January 27) - HCBBS Forum
54. Issues related to the incineration of hazardous waste - HCBBS Forum
55. Selection of synchronous and asynchronous motors for coal mill drive motors - HCBBS Forum
56. 【Daily Question】Question from Issue 20150819 - HCBBS Forum
57. 2016-11-15 Multiple-choice Questions (3 points for participation, 8 points for correct answers) - HCBBS Forum
58. Are there any requirements regarding work experience for the Public Foundation and Professional Foundation exams in the registration process? - HCBBS Forum
59. Selection of metal materials in a human-like gastric environment - HCBBS Forum
60. How to calculate the oil level in the device’s memory - HCBBS Forum
61. Let’s discuss the wastewater treatment methods for caustic soda plants - HCBBS Forum
62. What is polyacrylamide coagulant? - HCBBS Forum
63. Catalytic flue gas desulfurization - HCBBS Forum
64. Regarding winter anti-freezing measures - HCBBS Forum
65. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 407 - HCBBS Forum
66. What pump should be used to pump the sludge from magnesium oxide desulfurization wastewater? - HCBBS Forum
67. Which instruments require non-destructive testing? ? ? - HCBBS Forum
68. Ammonia recovery from acidic wastewater by stripping – caking - HCBBS Forum
69. 【Daily Question】Chemical Engineering Principles 175: Single-Stage Extraction (September 17) - HCBBS Forum
70. After driving, the alkalinity is low while the salt content is high - HCBBS Forum
71. Is it necessary to add heat transfer oil inside the PT100 sheath? - HCBBS Forum
72. Happy Mid-Autumn Festival to my friends! - HCBBS Forum
73. Overcurrent in the new centrifugal liquid oxygen pump and liquid nitrogen pump - HCBBS Forum
74. Civil Engineering Structure Discussion Area ---- [Daily Question] Question from the 20151111 issue - HCBBS Forum
75. Why were no crystals formed when urea phosphate was prepared in the laboratory? - HCBBS Forum
76. 【Daily Topic】【Engineering Version 20160525】 - HCBBS Forum
77. Water hardness and alkalinity: Why is it said that negative hardness can eliminate the permanent hardness of water? The young don’t understand; I ask everyone at the water department... - HCBBS Forum
78. How to control it in the early stage of operation of the atmospheric and vacuum heat exchange network - HCBBS Forum
79. Energy consumption calculation - HCBBS Forum
80. What should you do when you inspect a pump and find that it makes abnormal noises and experiences significant vibration? - HCBBS Forum
81. Design pressure of pipeline »= Design pressure of equipment - HCBBS Forum
82. Harbin Guanghan New Energy Power Co., Ltd. is urgently seeking a chief thermal engine engineer/specialist - HCBBS Forum
83. On the relationship between boiling point and relative volatility - HCBBS Forum
84. Schneider Electric signs a strategic cooperation agreement with Shenyang General Robot Company - HCBBS Forum
85. How to deal with power outages - HCBBS Forum
86. Black water flocculant forms foamy floating substances after dissolution - HCBBS Forum
87. Which is better, the position of Head of Safety and Environment or Head of Corporate Management? Please give me some guidance, senior - HCBBS Forum
88. What are the procedures, methods, and approaches for issuing production operation instructions and for reporting on them, in order to ensure consistency and transparency in these instructions? - HCBBS Forum
89. Separation of methane and carbon monoxide - HCBBS Forum
90. Loading of chemical products onto ships - HCBBS Forum
91. How to remove green moss in water - HCBBS Forum
92. Fire hazard rating of zinc powder - HCBBS Forum
93. Post on salary payment for the touring team in May 2016 - HCBBS Forum
94. 【First-Class Constructor Project Management Practice Questions】005 Uses of the Project Information System - HCBBS Forum
95. 【Daily Question】2015.09.26 (2 wealth points for replying, +3-8 additional wealth points for a correct answer) - HCBBS Forum
96. How to simulate fluid flow in pipes? ? - HCBBS Forum
97. 【Daily Topic】【Electrical Edition 20160424】 - HCBBS Forum
98. Simulation of catalyst consumption in circulating fluidized bed process - HCBBS Forum
99. Talk about Dongfang Xi Al’s polysilicon project in Wucaiwan, Changji - HCBBS Forum
100. On the difference between the product yield of crude oil in atmospheric and vacuum distillation units and the actual yield as determined by testing - HCBBS Forum