单词	maintenance safeguard
释义	maintenance safeguard 维护保障措施
随便看	position disparity Position displacement of component position display Position Display Parallax Corrected Position display window on handwheel position distribution report position distribution system position distributor position disturbance position diversity position division Position,Dorsal position doubtful position doubtfull position doubtful, PD position drift of geostationary satellite positione positioned positioned abstract positioned by mechanical synchronous axis positioned channel positioned interface structure positioned in the van positioned nucleosome positioned plug valve