stratified random
| sampling
| stratified random | |
| tech. | 分层随机 |
| sampling | |
| econ. | 示范 |
| hydroel.st. | 采样 |
| hydroel.st. од. | 取样; 抽样 |
| IMF. | 抽样法 |
| tech. | 样本化; 进样; 取土样 |
| textile | 签封样品; 提供样品 |
| |||
| 分层随机 | |||
|
stratified random : 27 phrases in 10 subjects |
| Agriculture | 2 |
| Business | 2 |
| Commerce | 1 |
| Desert science | 1 |
| Earth sciences | 2 |
| Geotechnics | 1 |
| Marketing | 1 |
| Oil / petroleum | 2 |
| Statistics | 5 |
| Technology | 10 |