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  1. 【Daily Question】Theoretical Foundation 2019.8.1 - HCBBS Forum
  2. Regarding the selection of flow rate during fluorine gas transportation - HCBBS Forum
  3. Seeking advice on voltage division issues - HCBBS Forum
  4. 【Daily Question】Theoretical Foundation 2019.9.3 - HCBBS Forum
  5. 【Daily Question】Theoretical Foundation 2019.9.9 - HCBBS Forum
  6. Does amine solution absorb organic sulfur? - HCBBS Forum
  7. Why is it that the greater the surface tension, the less likely an object is to crack? - HCBBS Forum
  8. Regarding space-time yield - HCBBS Forum
  9. 【Daily Question】Theoretical Foundation 2019.7.22 - HCBBS Forum
  10. 【Daily Question】Theoretical Foundation 2020.01.30 - HCBBS Forum
  11. 【Daily Question】Theoretical Foundation 2020.03.03 - HCBBS Forum
  12. 【Daily Question】Theoretical Foundation 2019.4.6 - HCBBS Forum
  13. Regarding the efficiency of centrifugal pumps - HCBBS Forum
  14. What to do if 304 stainless steel rusts severely? - HCBBS Forum
  15. The calculation of the reflux ratio - HCBBS Forum
  16. Process Design Issues Presentation and Lessons (1) - HCBBS Forum
  17. Increase in steam temperature after spray cooling - HCBBS Forum
  18. 12.22--Daily Agenda of the Process Office - HCBBS Forum
  19. 【Daily Question】Theoretical Foundation 2019.6.24 - HCBBS Forum
  20. 【Daily Question】Theoretical Foundation 2020.04.11 - HCBBS Forum
  21. 【Daily Question】Theoretical Foundation 2019.2.11 - HCBBS Forum
  22. Physical properties of hydrofluoric acid - HCBBS Forum
  23. What is the pressure caused by the expansion of a liquid as temperature rises? - HCBBS Forum
  24. How to remove rust-proof paint? Can strong acids or bases be used to dissolve it, or is the principle of like dissolves like applicable, using chloroform for dissolution? - HCBBS Forum
  25. If an explosion-proof tool has strong magnetism, is it still explosion-proof? - HCBBS Forum
  26. The sulfuric acid exhaust gas can be desulfurized using hydrogen peroxide followed by wet electrostatic demisting - HCBBS Forum
  27. 【Daily Question】Theoretical Foundation 2019.1.23 - HCBBS Forum
  28. Boiler drum level three-transmitter system - HCBBS Forum
  29. How much water is needed to convert low-pressure superheated steam into 0.4 MPa steam using a temperature and pressure reducing device? What is the amount of steam produced in the end, and how is this calculated? - HCBBS Forum
  30. 【Daily Question】Theoretical Foundation 2019.8.13 - HCBBS Forum
  31. Gas flow rate value - HCBBS Forum
  32. How is this enthalpy value determined? - HCBBS Forum
  33. Liquid tank adhesive - HCBBS Forum
  34. [Daily Question] Theoretical Basis 2020.04.06 - HCBBS Forum
  35. Fluid flow problems - HCBBS Forum
  36. 【Daily Question】Theoretical Foundation 2019.10.9 - HCBBS Forum
  37. Discussion on factors affecting oil quality indicators — What affects the odor of oil? - HCBBS Forum
  38. 【Daily Question】Theoretical Foundation 2019.8.7 - HCBBS Forum
  39. 【Daily Question】Theoretical Foundation 2019.11.8 - HCBBS Forum
  40. 【Daily Question】Theoretical Foundation 2020.02.15 - HCBBS Forum
  41. Regarding the drying of sodium sulfate with crystalline water - HCBBS Forum
  42. Differences between SH/T3146 and GB/T29529. - HCBBS Forum
  43. [Daily Question] Theoretical Basis 2020.01.12 - HCBBS Forum
  44. What is the unit of critical pressure PC? For example, what does 100PC mean? - HCBBS Forum
  45. One Question per Day in Applied Chemistry 8-11 - HCBBS Forum
  46. 【Daily Question】Theoretical Foundation 2019.9.14 - HCBBS Forum
  47. Intermittent operation of negative pressure distillation - HCBBS Forum
  48. What causes foaming during MVR evaporation? - HCBBS Forum
  49. 【Daily Question】Theoretical Foundation 2019.3.28 - HCBBS Forum
  50. Structure of Tianyu purification filters and considerations for customization - HCBBS Forum
  51. Regarding the design temperature of pipelines - HCBBS Forum
  52. 【Daily Question】Theoretical Foundation 2020.04.02 - HCBBS Forum
  53. Principles of Chemical Engineering - HCBBS Forum
  54. 【Daily Question】Theoretical Foundation 2019.7.21 - HCBBS Forum
  55. Is the specific heat at constant volume negative? - HCBBS Forum
  56. 【Daily Question】Theoretical Foundation 2019.10.16 - HCBBS Forum
  57. 【Daily Question】Theoretical Foundation 2019.1.30 - HCBBS Forum
  58. Check for trace oxygen - HCBBS Forum
  59. 【Daily Question】Theoretical Foundation 2019.7.30 - HCBBS Forum
  60. Applied Chemistry Daily Problem 8-7 - HCBBS Forum
  61. Questions about sulfuric acid vapor - HCBBS Forum
  62. One question per day on automation theory knowledge (makeup for 7.30) - HCBBS Forum
  63. 【Daily Question】Theoretical Foundation 2020.03.04 - HCBBS Forum
  64. Looking for a reliable chemical laboratory for silicone-related work - HCBBS Forum
  65. A very useful utility for converting units of data such as pressure and temperature - HCBBS Forum
  66. Are there any good ways to prevent chemical raw materials from corroding machinery and equipment? - HCBBS Forum
  67. 【Daily Question】Theoretical Foundation 2019.7.6 - HCBBS Forum
  68. I’d like to pay someone who is an expert in thermodynamics to answer a question for me - HCBBS Forum
  69. Anti-polymerization - HCBBS Forum
  70. Is a reactor pressure of 7 MPa considered medium pressure or high pressure? - HCBBS Forum
  71. Hazard of dangerous/toxic substances, allowable concentration - HCBBS Forum
  72. 【Daily Question】Theoretical Foundation 2019.7.3 - HCBBS Forum
  73. [Daily Question] Theoretical Basis 2020.04.13 - HCBBS Forum
  74. Can you help me find out what this means on the equipment layout diagram? - HCBBS Forum
  75. Methanol separation - HCBBS Forum
  76. Could some expert help me find the Antonie constants for acetic acid and vinyl acetate? - HCBBS Forum
  77. Calculate using the solution formula? - HCBBS Forum
  78. «Regulations on Safety Technical Inspection of Fixed Pressure Vessels» - HCBBS Forum
  79. 【Daily Question】Theoretical Foundation 2019.5.13 - HCBBS Forum
  80. Calculation of moisture content in exhaust gas - HCBBS Forum
  81. Unit of sulfur in gasoline products - HCBBS Forum
  82. 【Daily Question】Theoretical Foundation 2019.9.16 - HCBBS Forum
  83. fire separation distance - HCBBS Forum
  84. Daily Question on Automation Theory Knowledge (Question 99) - HCBBS Forum
  85. Daily Question on Automation Theory Knowledge (8.8) - HCBBS Forum
  86. How to apply for a hot work permit - HCBBS Forum
  87. 【Daily Question】Theoretical Foundation 2020.04.08 - HCBBS Forum
  88. What are the main tests for battery-grade lithium carbonate products? - HCBBS Forum
  89. The Petrochemical Federation* Committee earnestly fulfills its primary responsibilities - HCBBS Forum
  90. What is the method for calculating the moisture content in air? - HCBBS Forum
  91. Large coal companies collectively reduce prices to ensure a stable supply in the thermal coal market - HCBBS Forum
  92. Daily Question on Automation Theory Knowledge (Question 90) - HCBBS Forum
  93. 【Daily Question】Theoretical Foundation 2020.04.18 - HCBBS Forum
  94. Liquid ammonia is released directly into the air - HCBBS Forum
  95. 【Daily Question】Theoretical Foundation 2019.8.27 - HCBBS Forum
  96. 【Daily Question】Theoretical Foundation 2019.5.6 - HCBBS Forum
  97. 【Daily Question】Theoretical Foundation 2019.11.19 - HCBBS Forum
  98. Daily Question on Automation Theory Knowledge (8.1) - HCBBS Forum
  99. I need an expert to help me analyze the pressure at the operating point - HCBBS Forum
  100. TSG Z6001 and the Measures for the Supervision and Management of Personnel Working with Special Equipment - HCBBS Forum
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