vacuum oil真空油
vacuumn.真空;真空吸尘器;空白adj.产生(利用)真空的v.用吸尘器打扫
vacuum tube relay driver真空管中继驱动器
vacuum-changing method变压法
vacuum value of velocity真空速度
vacuum distillation unit减压蒸馏装置
vacuum-spark discharge真空火花放电
Vacuum induced coherence真空诱导相干性
vacuum preloading design真空预压法
vacuum gauge calibration真空计校准
vacuum diffusion welding真空扩散焊
vacuum preloading method真空预压法