... coal science 煤炭科学 coal screen 煤筛 coal shovel 攉煤机 ...
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短语
原煤筛选
raw coal screening
过筛煤
graded coal
筛选煤
sized coal
;
[矿业]
sieved coal
;
screened coal
筛过的煤
screened coal
采煤场筛选过的煤
colliery screened
煤渣用筛
cinder lifters
;
sieve for cinder
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