oil level rod 量油杆 ; 油位测量杆 ; 量油位杆

self-reading level rod [测] 自读水准尺 ; 自读式水准尺

oil l level rod 量油杆

four-level laser rod 四能级激光棒

Verification Regulation of Level Rod 水准标尺检定规程

Circular rod level 圆盒水准器

three-level laser rod 三能级激光棒

Rod level 标尺水平器 ; 杆尺水准器

fluid level gauge rod 测定液位的指示杆