multilevel sampling
| device
| multilevel sampling abbr. | |
| water.res. ecol. | 多层采样 |
| device abbr. | |
| dat.proc. од. | 器件 |
| met. | 仪器; 仪表; 机构; 设计; 草案; 图 |
| tech. | 装置; 设备 |
| |||
| 多层采样 | |||
|
multilevel sampling : 8 phrases in 4 subjects |
| Business | 2 |
| Earth sciences | 2 |
| Statistics | 1 |
| Technology | 3 |