particle grading
| sampler
| particle grade | |
| bridg.constr. | 粒级 |
| sampler | |
| auto.ctrl. | 采样元件 |
| eng.geol. | 取样机; 采样工 |
| interntl.trade. | 样品检查员 |
| met. | 取样工 |
| met. од. | 取样器; 采样器 |
| oil | 釆样器; 采样员; 取心器 |
| |||
| 粒级 | |||
| |||
| 粒径级配 | |||
|
particle grading : 4 phrases in 3 subjects |
| Geotechnics | 1 |
| Technology | 2 |
| Wood processing | 1 |