English — Forum #723 (Page 328/642)

1. 【Daily Question】 Hydrogenation Sector 2016-03-05 Multiple Choice - HCBBS Forum
2. 【Daily Question】3.15 Multiple-choice question: The main route by which toxic substances enter the human body is through ( ) - HCBBS Forum
3. Non-contact online pH measurement method - HCBBS Forum
4. Seeking help with liquid level measurement in ammonia spherical tanks - HCBBS Forum
5. Experience in regulating the bed temperature of converter furnaces - HCBBS Forum
6. Issues regarding the quality of washing oil in crude benzene recovery - HCBBS Forum
7. Fluorocarbon coatings for exterior walls have a wide range of applications - HCBBS Forum
8. Delayed coking heater - HCBBS Forum
9. How to understand the relationship between adsorption time and the number of times the adsorbent is regenerated - HCBBS Forum
10. Methanol Weekly Topic Reasons for the decrease in catalyst temperature in the synthesis tower, how to address it? 2016.0... - HCBBS Forum
11. I’m here!!!!! - HCBBS Forum
12. Problems with mechanical valve positioners? - HCBBS Forum
13. 【Daily Topic】【Civil Engineering Version 20160307】 - HCBBS Forum
14. Is anyone using the COADE TANK software? - HCBBS Forum
15. Regarding the joint issues of metal pipes - HCBBS Forum
16. Specification for the common wiring box for the solenoid valve and valve position switch on the pneumatic cut-off valve - HCBBS Forum
17. PDMS AUTO COLOUR RULE - HCBBS Forum
18. D343P-1.0Q butterfly valve - HCBBS Forum
19. Why can only 19 and 25 millimeter pipes be used for heat exchange tubes? - HCBBS Forum
20. 【Daily Topic】【Quality Version 20160314】 - HCBBS Forum
21. Question regarding the setting of methanol storage temperature - HCBBS Forum
22. Literature request::: De Malde M., Chim. Ind. (Milan), 45, No 6, 665 (1963). - HCBBS Forum
23. Sequence for powering on and off when replacing cards in the S7-300 - HCBBS Forum
24. Reuse of process hot water - HCBBS Forum
25. Must spring washers or other shims be used for the fan bearing housing and motor foot bolts? - HCBBS Forum
26. 【Daily Question】 Hydrogenation Sector 2016-03-15 Multiple Choice - HCBBS Forum
27. Does anyone among the seniors at Kaichuan have calculation problems for each stage of coal-to-methanol production? - HCBBS Forum
28. 【Joint Study*】【Electrical Version 20160316】 - HCBBS Forum
29. The media are hydrogen sulfide gas and aniline; what type of control valve material should I choose for an automatic control valve? - HCBBS Forum
30. Questions regarding the setting of the boiler drum liquid level - HCBBS Forum
31. What should be paid attention to in the key aspects of atmospheric and vacuum distillation operations? - HCBBS Forum
32. Transport of methanol and dimethyl ether - HCBBS Forum
33. Advantages and disadvantages of several groundwater softening treatment processes - HCBBS Forum
34. One Question per Day on Synthetic Ammonia (Series 34) - HCBBS Forum
35. How should gas flow rate be measured - HCBBS Forum
36. Is the legal representative the person in charge of company safety? - HCBBS Forum
37. Use of nitrogen - HCBBS Forum
38. Calculation of the number of trays in a natural gas desulfurization tower - HCBBS Forum
39. Inspection of double-phase steel upon arrival - HCBBS Forum
40. [Forward] English **idioms - HCBBS Forum
41. Can increased-safety equipment be used in Class A explosion-proof areas? - HCBBS Forum
42. Announcement by the General Administration of Quality Supervision, Inspection and Quarantine on the Issuance of the \"Regulations on Safety Technical Inspections for Fixed Pressure Vessels\" (No. 16, 2016) - HCBBS Forum
43. I have a question: is it necessary to place it on a saddle during the hydrostatic test? - HCBBS Forum
44. What aspects related to equipment should be considered when conducting field research for a new chemical plant? - HCBBS Forum
45. Seek answers to the problem of steam condensation fringes - HCBBS Forum
46. Send off **Fangfang - HCBBS Forum
47. Condensate flow issue - HCBBS Forum
48. "What is “taoqian paper”? It can’t be these characters; the pronunciation is like that – it’s used in heat exchangers - HCBBS Forum
49. 【Weekly Topic】【HVAC Version 20160310】 - HCBBS Forum
50. Tail gas from benzene chloride storage tank - HCBBS Forum
51. Problems with the desulfurization tower in diesel refining cycle hydrogen - HCBBS Forum
52. 【Weekly Topic】【Production Version 20160304】 - HCBBS Forum
53. Are the scores of the subjects passed in the first year of the Chemical Engineering exam retained in the second year? - HCBBS Forum
54. 【Joint Study*】【Civil Engineering Version 20160309】 - HCBBS Forum
55. Who has the procedures or precautions for loading gasoline into a vehicle? - HCBBS Forum
56. Supercritical extraction technology - HCBBS Forum
57. How do excessively long or short pipe bridges affect the stress on the pipe sheet? - HCBBS Forum
58. The device management system that everyone is using now - HCBBS Forum
59. Online registration and inquiry - HCBBS Forum
60. Special paint for cooling towers - HCBBS Forum
61. Multi-stage pump energy reduction - HCBBS Forum
62. Production of plasticizers from straight-chain primary alcohols with a carbon chain length of C7 or more - HCBBS Forum
63. What causes the frequent fluctuations in the liquid level gauge of the lower column in air separation? - HCBBS Forum
64. Problem of synthetic heat sinks - HCBBS Forum
65. Sign-in record post from March 10, 2016 - HCBBS Forum
66. Pump flow rate decreases - HCBBS Forum
67. Methanol sector is seeking a dedicated moderator - HCBBS Forum
68. Weighing equipment safety valve connector - HCBBS Forum
69. What type of expansion joint are flanged and flued expansion joints? - HCBBS Forum
70. Looking for recommendations for eye washers - HCBBS Forum
71. What flow meters do people use to measure oxygen flow? - HCBBS Forum
72. 【Daily Topic】【Civil Engineering Version 20160313】 - HCBBS Forum
73. The Tower version is in urgent need of moderators and engineers; please recommend some - HCBBS Forum
74. Difference between stop and emergency stop - HCBBS Forum
75. HART menu of the Metso locator - HCBBS Forum
76. Everyone discusses together the challenges in measuring process parameters and in controlling them within their own manufacturing processes, and shares ideas to find solutions - HCBBS Forum
77. 【Weekly Topic】【HVAC Version 20160309】 - HCBBS Forum
78. Regarding submersible pumps in the chemical industry, they have a limited service life - HCBBS Forum
79. Custom chain conveyor designed for the size of the materials to be transported - HCBBS Forum
80. What are the ultimate design temperature and design pressure for Q345R, 16MnII, and 20# pipe fittings? - HCBBS Forum
81. What is the significance of testing the initial boiling point and vapor pressure of naphtha? - HCBBS Forum
82. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 264 - HCBBS Forum
83. Method for measuring water pressure behind the water pump - HCBBS Forum
84. Is a scaffolder’s license required to set up mobile scaffolding? Is a climbing permit required? - HCBBS Forum
85. High-rate anaerobic fermentation process - HCBBS Forum
86. When is the waste amine stream from amine solution regeneration used? - HCBBS Forum
87. How large should the plug welding holes be, and what should the spacing between them be? - HCBBS Forum
88. Long-distance transmission of signal cables - HCBBS Forum
89. Understanding of API598-related content - HCBBS Forum
90. 【Basic Knowledge Activity】Bubble Point – a Key “Basic Knowledge” Topic in the Petrochemical Sector - HCBBS Forum
91. I would like to ask what kind of pipe material should be chosen - HCBBS Forum
92. Development trends of polyurethane adhesives - HCBBS Forum
93. On the compatibility between the motor of the water pump and the pump itself - HCBBS Forum
94. Yield of gasoline, diesel, and liquefied gas from delayed coking - HCBBS Forum
95. Hydrogenation reactor price - HCBBS Forum
96. The readings of the two propylene mass flow meters on the same pipeline differ from each other - HCBBS Forum
97. Regarding the lubrication of mechanical pumps - HCBBS Forum
98. Looking for a cracked version of pdsoft2.8 - HCBBS Forum
99. 【Daily Question】 Hydrogenation Sector 2016 03 07 Multiple Choice - HCBBS Forum
100. Acidification treatment of the sulfuric acid production circulation tank - HCBBS Forum