单词	半间接系统
释义	半间接系统semi indirect system
随便看	constant, jean joseph benjamin constant k filter constant-k filter constant-k lens constant-k network constant lead constant length field constant length system constant letter constant level balloon constant-level balloon constant level chart constant-level chart constant level head tank constant-level surface constant linear velocity constant linear velocity {=clv} constant linear velocity{=clv} constant linear velocity，clv constant linkage theorem constant load constant-load arrestment constant-load arrestment mode constant load asymmetrical beam constant load balance