variable-head
| torch
| variable head | |
| eng.geol. | 变水头 |
| torch | |
| dril. | 气焊焊枪把子 |
| hydroel.st. | 吹管; 切割器; 火炬 |
| met. | 火炬; 喷灯; 手电筒; 喷嘴 |
| oil | 火把 |
| UN tech. | 电筒 |
| |||
| 渗透试验变水头 | |||
| 可变压头; 变水头 | |||
|
variable-head : 15 phrases in 9 subjects |
| Earth sciences | 1 |
| Electronics | 2 |
| Engineering geology | 2 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Polymers | 1 |
| Power electronics | 1 |
| Technology | 3 |