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national standard straight pipe threads
 national standard straight pipe thread
gen. 美国标准直管螺纹; 圆柱形管螺纹
| for
 for
gen. ; ; ; ; 因为
| hose couplings
 hose coupling
oil 软管接头
| and
 and
gen.
| nipples
 nipple
wind. 螺纹接头

to phrases
national standard straight pipe thread
gen. 美国标准直管螺纹; 圆柱形管螺纹
avia. 国家标准直管螺纹
national standard straight pipe threads for hose couplings and nipples
: 6 phrases in 1 subject
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