 |
| |||
| single superphosphate | |||
| normal superphosphate; ordinary superphosphate; simple superphosphate | |||
|
superphosphate simple : 2 短语, 1 学科 |
| 农业 | 2 |
|
| |||
| single superphosphate | |||
| normal superphosphate; ordinary superphosphate; simple superphosphate | |||
|
superphosphate simple : 2 短语, 1 学科 |
| 农业 | 2 |