您要查找的是不是：
- 密级配AC-10Cdense-grade AC-10C
- 密级配close-graded
- 密级配的dense graded
- 配to join
- 密级配砂close sand
- 粗密级配crude gradation
- 每日三次，每次10c。c。。Take ten c.c. each time,three times a day.
- 密级配骨料dense-graded aggregate
- 配比mixture ratio
- 密级security classification
- 配管tubing
- 配线wiring
- 配上mix; compound; match; buy
- 密级数据classified data
- 配体ligand
- 密级信息classified information
- 予网密级classifications of the sub-network
- 配列assortment
- 把一份较旧的情报降低密级to downgrade an older information
- 配位coordination
