English — Forum #723 (Page 404/642)

Prev 401 402 403 404 405 406 407 Next
  1. Why is it necessary to consider a corrosion allowance for the skirt seat? - HCBBS Forum
  2. Daily Question】12.17 Definition: Fixed assets - HCBBS Forum
  3. The five beliefs and five doubts regarding safe handover – what are they specifically? ? - HCBBS Forum
  4. Regarding the policy on the 13th Five-Year Development Plan for the Petrochemical and Chemical Industries - HCBBS Forum
  5. The problem of recovering ethanol from a water-ethanol-ethyl acetate solution? - HCBBS Forum
  6. 20151227 One question per day - HCBBS Forum
  7. 【Daily Question】Question from Issue 20151215 - HCBBS Forum
  8. How does the tower temperature change when the pressure at the top of the distillation tower changes? - HCBBS Forum
  9. 【Daily Question】December 19, 2015: Participation +2 Wealth; +3 to 8 wealth for correct answers - HCBBS Forum
  10. “The canteen of HaiChuan Irrigation Co., Ltd.” – The weather is very sunny today, truly sunny - HCBBS Forum
  11. H/C=(H2-CO2)/(CO+CO2) I don’t understand it - HCBBS Forum
  12. 【Daily Topic】【Electrical Edition 20151224】 - HCBBS Forum
  13. 【Daily Question No. 83】December 24, 2015: +2 wealth for participation, plus another +3 to +8 wealth for correct answers - HCBBS Forum
  14. One yuan per question for judging right or wrong - HCBBS Forum
  15. Leakage in non-metallic compensator - HCBBS Forum
  16. 【Daily Question】December 26, 2015 – Participation +2 Wealth; +3 to 8 wealth for correct answers - HCBBS Forum
  17. For reciprocating compressors, what do “three returns per valve, two returns per valve, one return per valve” mean? And from which point does each return take place? - HCBBS Forum
  18. Regarding the classification of storage containers - HCBBS Forum
  19. Regarding adding a small platform outside the two-story steel structure - HCBBS Forum
  20. Just starting to work with chromatographs; looking for basic information - HCBBS Forum
  21. Crude oil decalcification technology - HCBBS Forum
  22. 【Daily Topic】【HVAC Version 20151218】 - HCBBS Forum
  23. Looking for various videos related to valves - HCBBS Forum
  24. Essays on Life - HCBBS Forum
  25. Why do oxygen pipeline valves and similar components need to be degreased? - HCBBS Forum
  26. Can the occupational health responsibility system and the safety production responsibility system documents be combined? - HCBBS Forum
  27. Two-stage hydrocracking - HCBBS Forum
  28. Questions about plate filters - HCBBS Forum
  29. 【Daily Question】【Quality Version 20151221】 - HCBBS Forum
  30. 【Daily Question】December 26, 2015: Boiler Basics True/False Questions (Top 50 responders receive +3 Wealth points; those who get it right receive an additional +3 to +8 Wealth points) - HCBBS Forum
  31. Regarding gas station fuel tanks - HCBBS Forum
  32. 【Basic Knowledge 25】What is wear corrosion? (Puzzle with prizes) - HCBBS Forum
  33. Aerospace gasification - HCBBS Forum
  34. MTO main fan damping check valve - HCBBS Forum
  35. Flue gas desulfurization scrubber overflow - HCBBS Forum
  36. What is the maximum capacity per PVC production unit in our country at present, in ten thousand tons? Which individual capabilities rank among the top? - HCBBS Forum
  37. Having money means you can be willful, ah, ah - HCBBS Forum
  38. Issues with the pressure values recorded in pipeline system pressure testing? - HCBBS Forum
  39. Classification of hazardous areas in electrolysis plant explosions - HCBBS Forum
  40. Christmas Carnival Night – My Wildest Moment (20 Wealth + 1 Charm Awaits You) - HCBBS Forum
  41. Sign-in record post dated December 26, 2015 - HCBBS Forum
  42. Oil-water mixed filtration - HCBBS Forum
  43. Use of Q235, Q345, 20# - HCBBS Forum
  44. How to refute what so-called experts say? - HCBBS Forum
  45. Domestic companies have carbon removal technologies such as the hot potassium alkali process, the alcohol amine process, and low-temperature methanol washing - HCBBS Forum
  46. 【Daily Topic】【Live Version 20151222】 - HCBBS Forum
  47. Conversion of crude oil distillation temperature and pressure - HCBBS Forum
  48. Happy egg-laying to everyone - HCBBS Forum
  49. Is it necessary to have lightning protection installation qualifications to install surge protectors in a distribution box? - HCBBS Forum
  50. What is H E? - HCBBS Forum
  51. 8-Year Work Summary - HCBBS Forum
  52. Joint Learning*1217: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
  53. Gas concentration and composition detection instruments - HCBBS Forum
  54. Pre-hydrogenation reactor startup bypass route - HCBBS Forum
  55. Black screen operation - HCBBS Forum
  56. Selection of 60 m3/h hydrogen production equipment - HCBBS Forum
  57. The correct way to operate natural gas valves - HCBBS Forum
  58. 【Daily Question】December 27, 2015 – Participate to earn +2 wealth; +3 to 8 wealth for correct answers - HCBBS Forum
  59. Can FST—3000 floating level gauges be used interchangeably? - HCBBS Forum
  60. Design of shell-and-tube spiral baffle heat exchangers - HCBBS Forum
  61. Seeking help from fellow sailors regarding heat exchange process calculations - HCBBS Forum
  62. Everyone, please help me figure out which Emerson flowmeter model this is Is it the F series? - HCBBS Forum
  63. 【Daily Question】【Quality Version 20151218】 - HCBBS Forum
  64. Can liquid chlorine cylinders be heated using an electric heating blanket? - HCBBS Forum
  65. 【Daily Topic】【Electrical Edition 20151222】 - HCBBS Forum
  66. 【Daily Question】Wastewater Knowledge - 12.28 (2 points for answering, 5 points for a correct answer) - HCBBS Forum
  67. 【Basic Knowledge 22】What is high-temperature oxidation? (Questionnaire with Prizes) - HCBBS Forum
  68. 【Daily Question No. 51】December 23, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
  69. 【Daily Question】December 22, 2015 – Boiler Basics True/False Questions (3 wealth points for replying; +3 to 8 additional wealth points for correct answers) - HCBBS Forum
  70. Will the stirring shaft deform or bend? - HCBBS Forum
  71. Catalyst for hydrogen production equipment - HCBBS Forum
  72. 【Daily Question No. 79】December 18, 2015: +2 wealth for participation, +3 to +8 wealth for correct answers - HCBBS Forum
  73. How to pronounce shell-and-tube heat exchanger? - HCBBS Forum
  74. How is the mass balance for water-coal slurry gasification calculated? - HCBBS Forum
  75. 【Daily Question】 December 24th: To what level is the coke tower purged by large-scale steam venting? ? - HCBBS Forum
  76. I have passed the cost engineer exam - HCBBS Forum
  77. What to do about water hammer - HCBBS Forum
  78. 【Daily Question】Question from Issue 20151215 - HCBBS Forum
  79. "Will investment in coal-based olefins remain strong during the 13th Five-Year Plan period? - HCBBS Forum
  80. How to connect explosion-proof sensors to wire conduit pipes - HCBBS Forum
  81. I have a few questions about gear pumps; thank you! - HCBBS Forum
  82. Grandiose Oil Refining - HCBBS Forum
  83. I have just started learning HYSYS, and I would like to ask everyone for some **basic materials for learning HYSYS** - HCBBS Forum
  84. 【Daily Question】Question from Issue 20151216 - HCBBS Forum
  85. 【New Energy Development】Power Generation in Low and Ultra-Low Wind Speed Conditions - HCBBS Forum
  86. Is an ultrasonic level gauge suitable for measuring powders? - HCBBS Forum
  87. Look for a software tool related to thermodynamics for pipelines - HCBBS Forum
  88. 【Weekly Topic】: The role of the screw conveyor in the coal powder preparation unit for pulverized coal gasification; can other equipment replace it? - HCBBS Forum
  89. New Aoshine project: tripartite joint venture - HCBBS Forum
  90. Recommendations for imported brands of 2500lb metal hard-sealed ball valves with floating balls - HCBBS Forum
  91. Classification of safety facilities - HCBBS Forum
  92. BACK DISC refers to whether it is the explosion-proof hole or the explosion-proof plate of the pressure gauge - HCBBS Forum
  93. For E+P+C projects, how can the owner ensure good construction quality control? - HCBBS Forum
  94. Let’s talk about oil prices - HCBBS Forum
  95. We are a restaurant in Shenzhen that generates approximately 80 cubic meters of wastewater per day. How should we handle this type of wastewater? - HCBBS Forum
  96. 【Picture of the Day】12.23 Take a look – what kind of foundation is shown in this picture? - HCBBS Forum
  97. 【Daily Question】Question from Issue 20151215 - HCBBS Forum
  98. Urgent! Urgent! Urgent! ! ! Does wastewater containing a high amount of sodium chloride (12%) still need to be heated using steam coils? - HCBBS Forum
  99. 【Daily Question】12.26: Determine the mechanism of stress corrosion cracking (3 rewards for replies; +3 to –8 rewards for correct answers) - HCBBS Forum
  100. Issues related to wound gaskets - HCBBS Forum
Prev 401 402 403 404 405 406 407 Next