virtual instrument instrument
Instrument to ascertain instrument height
military fire-kcontrol insturment military optical instrument
optical instrument & gauge instrument designing
A Lloyd’s policy form of insurance on an air cushion vessel hovercraft
abortive calfskin cushion
accumulator gas cushion
ACV-Air Cushion Vchicle
ail cushion belt conveyor
air cushion
气垫层
气垫
气垫枕
空气层
气帘
气幕
气垫空气减震器
气垫空气缓冲器
空气减震器
充气包装垫
空气垫
空气隙
分类法
air cushion belt conveyor