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- His figure looks very funny in the concave mirror. 他的样子在凹镜里显得非常可笑。
- An indented or concave surface or area. 凹陷，洼地凹的表面或地区
- concave cutter 凹半圆成形铣刀,凹半圆刃铣刀
- convex and concave cutter 凸凹铣刀
- The coastguard cutter cruise along the coast look for smuggler. 海岸警卫队缉私艇沿海巡逻搜寻走私犯。
- Just as a double convex lens enlarges, so a double concave lens reduces. 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
- A concave molding with a cross section that approximates a quarter circle. 飞檐的凹圆线脚截面近于九十度弧的凹线脚
- A depression similar to that in a shallow concave container for food. 凹形，凹面与浅的凹型盛食物的容器相似的凹处
- They are bailing out the cutter. 他们正在把小艇里的水往外舀。
- The palm of one's hand is slightly concave. 人的手掌是微凹的。
- A concave surface, structure, or line. 凹面、凹形结构、或凹线
- The cutter was bearing down the channel at 12knots. 快艇以每小时12海里的速度从向风的一侧驶近海峡。
- We got to work and succeeded in making our cutter. 我们干了起来，终于把刀具制成了。
- Concave on both surfaces;biconcave.Used of a lens. 双面均凹进的；双凹的。用于指透镜
- The list include a furniture caster, a biscuit cutter, and a crystal vase. 清单包括一个家俱底部的万向轮，一个饼乾切割器和一个水晶花瓶。
- Concave on one side and convex on the other. 一面凹进一面凸起的
- Gleason spiral bevel gear cutter. 格里森螺旋伞齿轮铣刀。
- Convex on one side and concave on the other. 凸凹的一面凸一面凹的
- The wood - cutter bunched his wood up. 樵夫将柴捆成捆。
- To the excellent concave and convex carving skill. 碑上的阴阳刻。
