reentrant

A protruding or receding part in a surface or line.

凸出（或凹入）部分在一个表面或线条上凸出或凹入的部分

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 recess, as in a border or coastline.

凹入处凹进之处，例如边缘或海岸的凹进处

The recess can be open to the top, with the integral blade subassembly being lowered into the recess, or the recess can open to the bottom, with the integral blade subassembly being raised into the recess.

凹穴开口向上时，整体的刀片组就下放入凹穴；凹穴开口向下时，整体的刀片组就往上塞入凹穴。

Each garage is like a hole with a box shape ( rectangular entrance ).

每个泊位像一个箱形的凹洞（矩形入口）。

Design and Research of Embedded Imprinter Unit Based on Shaft-less Transmission

嵌入式无轴传动凹印单元的设计研究

0 - Flat;1 - Raised;2 - Inset;3 - Raised Light;4 - Inset Light

-平面；1-凸起；2-凹入；3-凸起光；4-凹入光

In particular embodiments, the integrated subassembly is inserted into a recess in a housing of a shaving razor.

某几型产品中，整体的刀片组插入（须刀）罩的凹穴。

Getting Down to the Principle of the Surviving World --On Jia Ping ao s Writing Philosophy;

沉入生存世界的本源——论贾平凹的写作哲学

Convex on one side and concave on the other.

凸凹的一面凸一面凹的

Ulcer edge appears to" roll over" into the defect and is a tough fibrinous ring.

溃疡边缘“翻卷”进入凹陷处，形成一坚硬的纤维环。

Research on high-resolution image insertion based on fovea centralis vision principle

基于中央凹视觉的高分辨率图像插入技术

The rocks were folded by collapsing into the center of the trough.

岩石由于坍陷进入凹槽的中心而发生褶皱。

Study of Process Adaptability of Beneficiation of Iron Ore from Gaocun in Washan Concentrator

凹山选矿厂入选高村铁矿石的工艺适应性研究

Quantitative analysis of the presigmoid approach to central clival depression

乙状窦前入路处理斜坡凹陷区病变的量化研究

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 degree of concavity in such a depression.

凹陷，凹度这种凹陷的程度

a mortise joint made by fitting a projection on the edge of one board into a matching groove on another board.

通过嵌入木板一边的物体进入另外一边的凹槽造成的榫眼。