standard grain-size
| micrograph
| standard grain size | |
| tech. | 标准粒度 |
| micrograph | |
| avia. | 显微图; 微动描记器 |
| busin. | 显微传直电报 |
| earth.sc. | 显微照相 |
| manag. | 显微传真电报 |
| met. | 显微照片; 显微 图 |
| |||
| 标准粒度 | |||
|
standard grain-size : 2 phrases in 1 subject |
| Metallurgy | 2 |