oil level sight glass  玻璃油位表; 油位观察窗

correlation of oil-oil  油油对比

Croton oil (Oil of tiglii)  巴豆油

glass oil cup  玻璃油杯

glass oil oup  玻璃油盅

low resistance glass oil-trap  低阻抗玻璃捕油器

oil sight gage  外视油量计

oil sight gauge  目视油量表

oil-oil correlation  油油对比

Society of Automotive Engineer (SAE)oil oil  套管; 捞筒; 索帽; 挿座; 承窝; 管节

charging cylinder sight glass  充气缸检视窗

cylinder sight glass  油缸视窗

hydraulic tank sight glass  液压油箱目测镜

level sight glass  玻璃液位表

receiver-dryer sight glass  储气罐-干燥器观察孔

sight glass  观察镜; 窥视镜; 视镜; 窥镜; 检视窗; 观察窗; 显示玻璃; 量位计; 玻璃液位计; 玻璃液面计

sight glass component  观察窗部件

sight glass screw  观察窗螺钉

glass sight  光学瞄准具