trolley air cylinder是什么意思及反义词

trolley air cylinder是什么意思及反义词 air cylinder是什么意思 trolley TROLLEY, cylinder cylinder trolley用法 cylinder是什么意思 pheumatic cylinder cylinder是什么意思 laundry trolley是什么意思 feeder trolley是什么意思 hand trolley是什么意思 trolley的复数是什么 trolley coin是什么? trolley bag trauma travel trolley怎么样 英语翻译AIR COMPRESSORAir Compressor is positive displacement,air-cooled,two stage,two cylinder,singleacting,fabricated and reciprocating type air compressor.TECHNICAL SPECIFICATIONIS No.IS 5456:1985Bore & stroke 3”&2¾” X 1 ¾”