备用: reserve; spare; alternate; b ...部件: component; unit; parts; asse ...元件: element; component; part; ce ...备用元件: emergency unit; spare part备用部件: alternate block; replacement parts; spare unit; standby unit电信设备用部件和附件: components and accessories for telecommunications equipment备用部分: reserve piece; slack备用: reserve; spare; alternate; backup; standby application; standby联合国备用部队: reservetruppen der vereinten nationen; stand by forces for the united nations; stand-by forces for the united nations一类具有备用部件的可修人机系统解的适定性: the well - posedness of solution of repairable standby human - machine system成套备用零部件: set of spare units非专用元件: nondedicated part共用元件: shared components激光用元件: laser components两用元件: dual component专用元件: professional component储备用产品及零部件定单: order for products and parts manufactured for stock电工设备用其他元件: other components for electrical equipment备用的;备用品;备用设备: stby备便,备用: stand by备急,备用: pre-emergency备用, 预备: in reserve备用保: back-uprotection备用泵: appendage pump; backer pump; before and after pump; emergency pump; jury pump; reserv pump; reserve pumps; reserved pump; service pump; spare pump; stand by pump; tand-by pump备用表: backing sheet