.
Weldability 可焊性 |
Welding 熔焊 |
Welding, Arc 弧焊 |
Wet process 湿式抽气过程 |
Wheeler seal 卡环法兰封合 |
Window 窗口 |
work 功 |
Working pump 真空邦浦工作范围 |
Working range gauge 真空计工作范围 |
.