standard standard of vo|
95th standard project standard
Standard addition method and internal standard method
standard of aroma type and standard sample
adjust the ship’s draft
air draft
空气通风
气流
吸风
通风
抽风
净空高度
水上高度
净空高度水上高度
水线到舱口围顶的距离
air heater draft losses
air seal type clean draft chamber