national standard straight pipe thread | |
gen. | 美国标准直管螺纹; 圆柱形管螺纹 |
for | |
gen. | 合; 为; 替; 给; 因为 |
hose coupling | |
oil | 软管接头 |
and | |
gen. | 并 |
nipple | |
wind. | 螺纹接头 |
| |||
美国标准直管螺纹; 圆柱形管螺纹 | |||
国家标准直管螺纹 |
national standard straight pipe threads for hose couplings and nipples : 6 phrases in 1 subject |
Aviation | 6 |