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sand showing
 sand shows
tech. 砂岩油苗
| oil
 oil
hydroel.st. ; 石油
met. ; 润滑材料; 润滑剂; 润滑
oil 原油
textile 油布雨衣; 油布衣裤

to phrases
sand shows
tech. 砂岩油苗
sand showing oil
: 2 phrases in 1 subject
Geology2