zero length spring gravimeter

翻译项目网... ... zero knives linear 零刀联线 zero-length spring gravimeter 零长弹簧重力仪 zero-line oscillating 零线抖动 ...

进出口货物名称中英对照... ... zero-length spring gravimeter 零长度弹簧式重力仪 zero-permeability isolator 零导磁率隔离器 ...