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| 凹状〔面，处，性〕; 成凹形 | |||
| 凹度 (concavitas) | |||
| 凹面形 | |||
| 凹曲度; 凹面线 | |||
| 焊接焊缝凹度 | |||
| 凹处 | |||
| 凹性 | |||
| 凹状面 | |||
| 聚能穴如果在装药起爆的另一端做成空穴,当爆轰波传至空穴表面时,爆轰产物将改变运动方向〈大体垂直空穴表面〉，就会在装药轴线上汇集、碰撞，产生高压，并在药卷轴线方向上形成向前高速运动的爆炸产物聚能流，这种能形成聚能流的空穴称为聚能穴 | |||
| 凹 | |||
| 凹度 | |||
| 焊缝凹度 | |||
| 凹面; 凹形 | |||
| 凹曲 (度); 熔洞; 凹线; 反弧形 | |||
| concavity: 25 phrases in 10 subjects |
| Agriculture | 1 |
| Artificial intelligence | 2 |
| Automobiles | 1 |
| Desert science | 1 |
| General | 1 |
| Metallurgy | 8 |
| Nautical | 1 |
| Oil / petroleum | 3 |
| Plastic surgery | 1 |
| Technology | 6 |
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