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  1. 【Weekly Topic】【Production Version 20170116】 - HCBBS Forum
  2. 【 Weekly Topic】【 Quality Version 20170114】 - HCBBS Forum
  3. 【Daily Topic】【HVAC Version 20170117】 - HCBBS Forum
  4. [Daily Topic] [HVAC Edition 20170109] - HCBBS Forum
  5. 【Daily Topic】【Storage and Transportation Edition 20170101】 - HCBBS Forum
  6. 【 Weekly Topic】【 Quality Version 20170113】 - HCBBS Forum
  7. 【 Weekly Topic】【 Quality Version 20170107】 - HCBBS Forum
  8. Can welding be done on equipment lined with rubber or plastic? ? ? - HCBBS Forum
  9. 【Weekly Topic】【Production Version 20170109】 - HCBBS Forum
  10. 【Daily Topic】【Production Edition 20170117】 - HCBBS Forum
  11. 【 Daily Topic】【 Quality Version 20161231】 - HCBBS Forum
  12. Rewards for reporting omissions: First version of the Haichuan technical team roster = Haichuan technicians + technical discussants + one-on-ones - HCBBS Forum
  13. Questions regarding the table notes in Code for Building Design 4.2.1 - HCBBS Forum
  14. Formulas for the integrated design of electrolyzers - HCBBS Forum
  15. 【JST-027】One-on-one assistance office for catalytic units (focusing on reactions, distillation, and units) - HCBBS Forum
  16. Which domestic companies are engaged in the isomerization of n-butane? - HCBBS Forum
  17. 【Weekly Topic】【Engineering Version 20170119】 - HCBBS Forum
  18. 【Daily Topic】【Production Version 20170106】 - HCBBS Forum
  19. What is the power-off UPS protection for electric valves? - HCBBS Forum
  20. 【Weekly Topic】【Production Version 20170112】 - HCBBS Forum
  21. 【Daily Topic】【Storage & Transportation Version 20170110】 - HCBBS Forum
  22. Have all coal-fired boilers been converted to use gas? - HCBBS Forum
  23. Pressure drop requirements for long-distance pipelines - HCBBS Forum
  24. 【JST-054】Automation and Instrumentation One-on-one Q&A Office - HCBBS Forum
  25. 【 Daily Topic】【 Quality Version 20170113】 - HCBBS Forum
  26. One building contains 3 fire compartments, each storing substances of categories A, B, and C. - HCBBS Forum
  27. How to convert Nm3/h to m3/h. - HCBBS Forum
  28. How to determine whether a mixed gas is explosive? - HCBBS Forum
  29. Papers on chemical engineering processes - HCBBS Forum
  30. Blueprints that are older than I am; those interested can take a look - HCBBS Forum
  31. 【Picture of the Day】【Civil Engineering Version 20170114】 - HCBBS Forum
  32. 【 Daily Topic】【 Quality Version 20170106】 - HCBBS Forum
  33. 【Daily Topic】【Engineering Version 20170114】 - HCBBS Forum
  34. 【Daily Topic】【Engineering Version 20170119】 - HCBBS Forum
  35. Calculation of the volume concentration of methanol in the storage tank - HCBBS Forum
  36. 【Weekly Topic】【Production Version 20170114】 - HCBBS Forum
  37. 【Daily Topic】【Engineering Version 20170117】 - HCBBS Forum
  38. I have been working in the oil refining industry on shift rotations for five years; I want to change jobs but have forgotten all the relevant knowledge. Please recommend some books for learning* - HCBBS Forum
  39. Aspen Plus for calculating bubble point - HCBBS Forum
  40. 【Daily Topic】【HVAC Version 20170116】 - HCBBS Forum
  41. Severe corrosion at the bottom and top of the fracturing fluid tank - HCBBS Forum
  42. Determining the feasibility of membrane filtration for treating the by-product alkali waste in production - HCBBS Forum
  43. Coal carbonization equipment - HCBBS Forum
  44. 【JST-047】One-on-one assistance office for heat exchanger technology - HCBBS Forum
  45. 【 Weekly Topic】【 Quality Version 20170120】 - HCBBS Forum
  46. Can pneumatic control valves use steam as a power source? - HCBBS Forum
  47. 【 Daily Topic】【 Quality Version 20170114】 - HCBBS Forum
  48. Storage and loading temperature for asphalt No. 40 - HCBBS Forum
  49. 【Picture of the Day】【Civil Engineering Version 20170118】 - HCBBS Forum
  50. What type of radiator should be used for 0.3MPa steam? - HCBBS Forum
  51. Questions regarding chloride ions and free chlorine in circulating water - HCBBS Forum
  52. Can ethanolamine absorb carbon dioxide? - HCBBS Forum
  53. 【Weekly Topic】【Production Edition 20170105】 - HCBBS Forum
  54. 【 Daily Topic】【 Quality Version 20170111】 - HCBBS Forum
  55. 【Weekly Topic】【Storage & Transportation Version 20170106】 - HCBBS Forum
  56. 【Daily Topic】【Storage and Transportation Edition 20170105】 - HCBBS Forum
  57. 【Weekly Topic】【Electrical Edition 20170117】 - HCBBS Forum
  58. 【 Weekly Topic】【 Quality Version 20170112】 - HCBBS Forum
  59. Coordinates - HCBBS Forum
  60. 【Daily Topic】【Storage & Transportation Version 20170114】 - HCBBS Forum
  61. Fire separation distances and firewall issues - HCBBS Forum
  62. Is it possible to determine the flow velocity given the known pressure and pipe diameter? - HCBBS Forum
  63. 【Daily Topic】【Engineering Version 20170101】 - HCBBS Forum
  64. A question regarding civil buildings - HCBBS Forum
  65. 【Weekly Topic】【Production Version 20170117】 - HCBBS Forum
  66. [JST-015] One-on-one Q&A on chemical process control and instrumentation [Technical update to floor 1818] - HCBBS Forum
  67. 【Weekly Topic】【Engineering Version 20170104】 - HCBBS Forum
  68. Please help me answer a question - HCBBS Forum
  69. 【 Weekly Topic】【 Quality Version 20170108】 - HCBBS Forum
  70. One-on-one consultation office for mechanical seal installation and fault diagnosis - HCBBS Forum
  71. 【Weekly Topic】【Civil Engineering Version 20170119】 - HCBBS Forum
  72. Discussion on CO2-driven oil recovery technology - HCBBS Forum
  73. How should the design of wastewater treatment processes in the pharmaceutical industry be considered? - HCBBS Forum
  74. 【JST-012】One-on-one Q&A on E+H instrument issues【Technical update to Floor 921】 - HCBBS Forum
  75. 【Weekly Topic】【Civil Engineering Version 20170114】 - HCBBS Forum
  76. 【Daily Topic】【Civil Engineering Version 20170106】 - HCBBS Forum
  77. The issue of water hammer - HCBBS Forum
  78. 【JST-068】One-on-one consultation office for nitrogen fertilizer technology experts - HCBBS Forum
  79. Ultimately, gas delivery pipelines should avoid liquid pockets, while liquid delivery pipelines should avoid air pockets - HCBBS Forum
  80. Questions regarding the temperature, pressure, and level settings for above-ground vertical gasoline storage tanks - HCBBS Forum
  81. 【 Weekly Topic】【 Quality Version 20170122】 - HCBBS Forum
  82. Valve-related – is it stipulated that two safety valves must be installed? - HCBBS Forum
  83. 【Weekly Topic】【Storage & Transportation Version 20170109】 - HCBBS Forum
  84. Does the fire separation distance from an open flame or a spark-producing source refer to the axis of the equipment itself or that of the building? - HCBBS Forum
  85. 【Daily Topic】【Storage & Transportation Version 20170104】 - HCBBS Forum
  86. 【Weekly Topic】【HVAC Version 20170119】 - HCBBS Forum
  87. 【Daily Topic】【Production Version 20170111】 - HCBBS Forum
  88. Calculation of the wetted area according to API521 - HCBBS Forum
  89. For triethylene glycol dehydration, is electric heating required? - HCBBS Forum
  90. 【 Daily Topic】【 Quality Version 20170116】 - HCBBS Forum
  91. 【Picture of the Day】【Civil Engineering Version 20170110】 - HCBBS Forum
  92. 【Daily Topic】【Civil Engineering Version 20170108】 - HCBBS Forum
  93. Understanding of Note 6 in Building Code Table 4.2.1 - HCBBS Forum
  94. Can an MVR evaporator be designed using HTRI? ! - HCBBS Forum
  95. 【JST-067】One-on-one consultation service for pipeline technology experts in flange forgings - HCBBS Forum
  96. 【Weekly Topic】【Civil Engineering Version 20170108】 - HCBBS Forum
  97. Can 3A molecular sieve remove organic substances? - HCBBS Forum
  98. Does the fire category of 20% ammonia water belong to Class B? - HCBBS Forum
  99. 【Daily Topic】【HVAC Version 20170104】 - HCBBS Forum
  100. 【Daily Topic】【HVAC Version 20170112】 - HCBBS Forum
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