stratified sampling
| approach to
| indexing
| stratified sampling | |
| busin. | 分层抽样 |
| hydroel.st. | 分层取样 |
| hydroel.st. од. | 分层抽样 |
| space | 多层抽样 |
| stat. | 分层抽样法; 分层随机抽样 |
| approach to | |
| gen. | 的方法 |
| indexing | |
| agric. | 病毒指数 |
| comp. | 变址 |
| compr. од. | 分度法 |
| econ. | 编制指数 |
| met. | 指数; 分度; 索引 |
| multimed. | 建索引 |
| oil | 指数化 |
| |||
| 统计分层抽样 | |||
| ★ 分层抽样; 分层取样 | |||
| 多层抽样 | |||
| 分层抽样法; 分层随机抽样 | |||
| 分层抽样 (法); 分层采样 | |||
|
stratified sampling : 54 phrases in 13 subjects |
| Agriculture | 1 |
| Business | 5 |
| Commerce | 3 |
| Demography | 2 |
| Desert science | 1 |
| Earth sciences | 1 |
| Economics | 1 |
| Geotechnics | 1 |
| Marketing | 3 |
| Securities | 2 |
| Sociology | 2 |
| Statistics | 6 |
| Technology | 26 |