常見例句雙語例句Describes briefly the basic concept about natural smoke exhaust calculation, such as thermal pressure, steady state fire, neutral level, flow coefficient, etc.簡要闡述了自然排菸計算的基本概唸， 如熱壓、穩(wěn)態(tài)火災、中和界、流量系數(shù)等； 返回 neutral pressure level