English — Forum #723 (Page 280/642)

1. CAD2004 license number - HCBBS Forum
2. Question about the wall thickness of a tee! - HCBBS Forum
3. 【Daily Question No. 134】May 04, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
4. What is the required moisture content of the feed coal in fixed-bed and fluidized-bed gasification? - HCBBS Forum
5. The capillary is broken; can it still be used once it’s broken inside? - HCBBS Forum
6. Mechanical dust removal using steel balls - HCBBS Forum
7. Plant 3D - HCBBS Forum
8. Regarding dry gas seals - HCBBS Forum
9. 【Daily Topic】【Electrical Edition 20160427】 - HCBBS Forum
10. Is it not allowed to have a power distribution room in Class A factories? - HCBBS Forum
11. Why does the make-up water for circulating water contain phosphorus? - HCBBS Forum
12. 10 health tips for 90-year-olds - HCBBS Forum
13. What is methylenediurea? - HCBBS Forum
14. Request CAD drawings of the process flow diagram, equipment layout diagram, and piping layout diagram for the oxygen oxidation method of ethylene oxide - HCBBS Forum
15. 【Picture of the Day】2016 05 04 What is the device in this picture? - HCBBS Forum
16. 【Operations Team】April 2016 Salaries - HCBBS Forum
17. 【Daily Question】Deep Processing 20160502 Multiple-choice Question. The design evaluation criteria for industrial reactors include: a. Conversion rate； b、... - HCBBS Forum
18. Selection of pumps - HCBBS Forum
19. If a device or other piece of equipment catches fire, should a passerby call the fire department? - HCBBS Forum
20. Chemical Engineering Graduate Student - HCBBS Forum
21. NPSHr and NPSHa are very close to each other - HCBBS Forum
22. 【Daily Question】 2016 04 27 Hydrogenation Sector Multiple-choice Question - HCBBS Forum
23. Looking for Tsinghua furnace: furnace structure diagram, gasification process flow diagram - HCBBS Forum
24. Material of the pressure transmitter body - HCBBS Forum
25. Roof spraying issue - HCBBS Forum
26. One Question per Day on Synthetic Ammonia (Series 81) - HCBBS Forum
27. Separation of ethyl acetate-water-ethanol - HCBBS Forum
28. Solutions for voltage fluctuations in inverters? - HCBBS Forum
29. The difference between pipeline design and engineering - HCBBS Forum
30. I have a question regarding the sharp drop in dissolved oxygen at wastewater treatment plants every afternoon! - HCBBS Forum
31. hydrocracking - HCBBS Forum
32. Environmental Protection Daily Post – April 30: Reward for participation, plus 5 more points for answering correctly - HCBBS Forum
33. Why can’t the total nitrogen level in the effluent from the AAO process be reduced? - HCBBS Forum
34. 【Q&A Question 014】2016.05.04 - HCBBS Forum
35. Is it mandatory to comply with GB31571-2015 for MTO flue gas emission limits? - HCBBS Forum
36. How to effectively prevent dust explosions in workshops - HCBBS Forum
37. Registered Safety Engineer since 2016 - HCBBS Forum
38. \"Taste of HaiChuan – Food Lovers of HaiChuan Have Power\": 2 days left until May Day, time to spend money! - HCBBS Forum
39. I suddenly thought of a question that’s not really a problem - HCBBS Forum
40. One Question per Day, April 29, 2016 – Catalysis Section: Small-scale feeding of catalytic devices - HCBBS Forum
41. Stay in the department or the workshop? - HCBBS Forum
42. 【Daily Topic】【Production Version 20160426】 - HCBBS Forum
43. Regarding the issue of the handover and interfaces between automatic control signals and electrical signals in the SIS system, how should relays be selected? - HCBBS Forum
44. What do the electrode designations such as Ao312, K422, H317, and K507 mean? What does the man in front represent? - HCBBS Forum
45. Why does a refrigerator have high exhaust pressure and high oil pressure when the load is very low? - HCBBS Forum
46. The distribution issue of sour gas into the reaction furnace? - HCBBS Forum
47. 【Daily Question】Principles of Chemical Engineering 366: Resins (April 29) - HCBBS Forum
48. Control system regulator in forward mode, reverse mode, forward output, reverse output - HCBBS Forum
49. Reboiler at the bottom of the tower - HCBBS Forum
50. Sulfur Daily Question, May 3rd------3 points for participation, 10 points for a correct answer - HCBBS Forum
51. How to prepare dilute sulfuric acid - HCBBS Forum
52. Foundation bolt issue - HCBBS Forum
53. Measures for the Quality Management and Supervision of Chemical Materials - HCBBS Forum
54. Electronic version of the 2016 edition textbook for the Mechanical and Electrical Engineering Management and Practice course in the Second-Level Constructor qualification exam - HCBBS Forum
55. 【Daily Topic】【Civil Engineering Version 20160429】 - HCBBS Forum
56. What is the typical size of the steam injection holes at the bottom of a stripping tower? - HCBBS Forum
57. Can’t generate ISO drawings for self-built grade library flanges? ? ? ? - HCBBS Forum
58. How to sample, analyze, and test H2S in liquid sulfur products? - HCBBS Forum
59. For measuring bituminous materials, what flow meters do people choose? - HCBBS Forum
60. 【Daily Topic】【Civil Engineering Version 20160430】 - HCBBS Forum
61. Transformation of low-temperature condensate stripping tower condensate utilization - HCBBS Forum
62. PCS7 import project - HCBBS Forum
63. Consult Chengdu-Chongqing Engineering Design Company - HCBBS Forum
64. It is recommended to establish a section for catalyst research and development - HCBBS Forum
65. Regarding whether the cut-off valve should be equipped with a manual/automatic switching function - HCBBS Forum
66. 【Micro-fiction】I am an ordinary person” - HCBBS Forum
67. 【Daily Topic】【Engineering Version 20160504】 - HCBBS Forum
68. Throttle device pressure tapping port - HCBBS Forum
69. Summary of the compound fertilizer market conditions across China in May 2016 - HCBBS Forum
70. What is the typical level of impurities in cracked gasoline? - HCBBS Forum
71. 【Daily Topic】【Engineering Version 20160501】 - HCBBS Forum
72. Why do the perpetual flames of ground torches go out easily? - HCBBS Forum
73. A new beginning - HCBBS Forum
74. Thoughts on taking registered exams - HCBBS Forum
75. 【Daily Question No. 128】April 25, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
76. Data on the C3 component content in the ethylene plant output - HCBBS Forum
77. “The 13th Five-Year Plan for modern coal chemical industry identifies five key technological areas - HCBBS Forum
78. Urgently needed: For a capacity of 667 kW at 380 V, what size cable and what rating circuit breaker should be used? - HCBBS Forum
79. Circulating water make-up water issue - HCBBS Forum
80. Heat exchanger cleaning - HCBBS Forum
81. The Ministry of Environmental Protection publishes information on public participation in the environmental impact assessment for Xintian coal-to-gas project - HCBBS Forum
82. Another job application that left me with no tears to cry! - HCBBS Forum
83. Notice on the 2016 Publicity Week Campaign for the Law on the Prevention and Control of Occupational Diseases issued by the State Administration of Work Safety - HCBBS Forum
84. 【Daily Question】 2016 04 23 Hydrogenation Sector Multiple-choice Question - HCBBS Forum
85. Sign-in record post from April 29, 2016 - HCBBS Forum
86. 5 years of work experience in hydrogenation, hydrogen production, and delayed coking - HCBBS Forum
87. I have a question regarding steam condensate flashing - HCBBS Forum
88. What can be used to remove the dark color from leather wastewater without causing an odor? - HCBBS Forum
89. Unit conversion between ppm and volume percentage - HCBBS Forum
90. Starting of a centrifugal compressor - HCBBS Forum
91. Pressure pipeline work: what is the difference between sealing under pressure and plugging leaks under pressure? - HCBBS Forum
92. Stellite is a type of alloy; why are some valve seats and valve cores welded with Stellite? - HCBBS Forum
93. Selection of the airtightness test pressure for pipelines equipped with rupture disc safety valves - HCBBS Forum
94. March-April 2016 Selection Contest for Outstanding Original Technical Themes (Award Post) - HCBBS Forum
95. Are there any job openings for new large-scale projects? - HCBBS Forum
96. 10 Principles of Cross-Departmental Communication! - HCBBS Forum
97. New employees who are going to work in a wastewater treatment plant doing testing – what should they pay attention to? - HCBBS Forum
98. Environmental Protection Daily Tip 5.03: Reward for participation is 5 points, plus an additional 5 points for answering correctly - HCBBS Forum
99. Haichuan Thanksgiving Season event: Participants are invited to come and collect their prizes - HCBBS Forum
100. Agitator impeller discharge volume - HCBBS Forum