main vent 中文意思是什麼
main vent
解釋
通風干管-
On top of one of the fast - opening ends that closed to the pig receiver & launcher shall assemble vent valve, safety valve and pressure gauge, and at the bottom shall assemble drain valve, sideway inlet and vent valve to take out medium from the main pipe as the power of forcing pig and conveyance medium
靠近收發球筒快開盲板一端上部應設防空閥、安全閥及壓力表、下部設排污閥、側面設進、出油（氣、水）閥，以便從干管中取介質作為驅動清管器的動力及輸出介質。 -
Main products made in our factory cover magnesia carbon brick, alumina magnesia carbon brick and carbonless brick and carbonless brick for converter, electric furnace and ladle finer as well as slide plate, pocket block, vent brick and impact plate ; pouring materials for converter ladle, gunning refractory for pouring basket, chrome conduction agent, carburant and other unshaped refractory
我廠的主要產品有:轉爐、電爐、鋼包精練爐用鎂碳磚、鋁鎂碳磚、無碳磚及板、水口、座磚、透氣磚、沖擊板等；轉爐鋼包澆注料、中間包用噴補料、鉻質引流劑、增碳劑等不定耐火材料。 -
The vent pipe runs in parallel to the soil stack and is connected to the branch soil pipe from a bathroom on the fourth floor. it serves to equalize the air pressure between the main soil stack and the branch soil pipe
污水排氣管與污水管平衡敷設，並與四樓一浴室的支污水管連接，作用是平衡主污水管及支污水管之間氣壓。
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