单词	operating arm shaft
释义	operating arm shaft 操纵臂轴
随便看	ecological characteristics ecological characteristics of community ecological characteristics of roots ecological characteristics of zhejiang ferns ecological characteristic storages of reservoir Ecological character of distribution ecological characters ecological chemical behavior ecological chemical industry ecological chemistry ecological chestnut orchard ecological circle Ecological circumstances ecological cities ecological cities and towns ecological citizenship ecological city ecological-city ecological city park ecological city planning ecological civilazation ecological civilizadon ecological civilization ecological c ivilization ecological civilization building