您要查找的是不是：
- The receiving materials shelf is designed into flat base or concave base. 接料架设计为平形底座的形式或凹形底座的形式。
- A cylinder is a hollow tube with a closed concave base that permits it to stand upright. 钢瓶是中空的管道，封闭的底部是凹入的，这样可以直立起来。
- A cylinder is a hollow tube with a closed concave base that permits the cylinder to stand upright. 钢瓶是中空的管道，封闭的底部是凹入的，这样可以直立起来。
- 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
- The runner was retired put out at first base. 跑垒者于第一垒上被刺杀出局。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- You cannot enter a military base without a permit. 无通行证者不得擅入军事基地。
- Her heavy industry rests on a broad and firm base. 它的重工业有广泛坚实的基础。
- He caught me off base with that question. 他的问题猝然把我给问倒了。
- The bombers swooped on the air base. 轰炸机突袭空军基地。
- Many languages have Latin as their base. 许多语言都以拉丁语为基础。
- 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。
- His base conduct was condemned by everyone. 他的无耻行为受到所有人的谴责。
- His idea is completely off base. 他的想法大错特错。
- Two soldiers dismounted the gun from the base. 两个战士把炮从底座上卸下来。
- 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
- In a poor, lowly, or base manner. 简陋地，谦卑地，卑鄙地
- 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
- The sea washes the base of the cliffs. 海水拍打著悬崖的底部。
