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阳螺杆
 阳螺杆
compr. male rotor
| 内压缩
 内压缩
compr. internal compression
| 转角
 转角
avia. corner; deflection angle; turn angle
bridg.constr. angle of rotation; angular rotation
hydroel.st. outer corner
racing corner
space rotational angle

to phrases
阳螺杆
compr. male rotor
阳螺杆
: 6 phrases in 2 subjects
Compressors5
Oil / petroleum1