1.
Find the critical number, point of inflection, relative extrema, increasing or decreasing interval, concave upward or downward interval of the function.
找出此函数的端点，反曲点，相对极值，递增或递减区间，凹向上或凹向下的区间。
2.
An opening or recess in a wall.
壁凹；墙洞墙上向内凹或向外凸的部分或孔隙
3.
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。
4.
Notch- An indent on the edge of a wafer used for orientation purposes.
凹槽-晶圆片边缘上用于晶向定位的小凹槽。
5.
the Shore falls off to the Westward towards Cromer,
海岸由此向西凹进，并向克罗默延伸。
6.
Because of long illness his eyes fell in.
由于长期生病，他的双眼向内凹陷。
7.
a box pleat reversed so that the fullness is turned inward.
箱状褶翻转导致凸的部分向里凹进去。
8.
Study on Corner Sink and Vertical Cracks of CC Steel Billet
连铸坯角部凹陷及纵向裂纹的研究
9.
Natural Gas Resources Evaluation and Exploration Prospect in Dongpu Depression
东濮凹陷天然气资源评价及勘探方向
10.
Petroleum Characteristics and Prospecting Target in Chaiwopu Seg,Junggar Basin
柴窝堡凹陷石油地质特征及勘探方向
11.
A Study on Optimal Design Method for the Die of Forward Heat Extrusion
正向热挤压凹模优化设计方法的研究
12.
JIA Ping-wa and the Literary Turn to Grassroots in the Current Century;
贾平凹与新世纪文学的“底层”转向
13.
Division of petroluem system and exploration direction in Chezhen Sag
车镇凹陷含油气系统划分及勘探方向
14.
Experiments of dent resistance show that the dent resistance of isotropic steel is poorer than BH steel.
抗凹陷性测试结果表明，各向同性钢的抗凹陷性低于烘烤硬化钢。
15.
The front and side walls were bucked inward several inches, and the door in the front was broken off.
屋前以及两侧墙壁向内凹进数寸，前门被刮掉。
16.
The locking structure includes projections projecting into the slots that engage holes through the longitudinal ends.
锁紧装置包括卡楯伸进凹槽、过纵向末端的小孔。
17.
"My brother said to me, `Let us take to the hollow road.'
我哥向我说：“我们从那条凹下去的路走吧。”
18.
A recess, such as a bay or cove, along a coast.
水湾海岸边弯向大陆的凹进处，例如海港或水湾