1.
The line of intersection, inward concave and shallow area of curved surface are the difficult points in curved surface machining.
曲面交线、面内凹区域及曲面中浅平面的加工是曲面加工中的难点。
2.
Clean recessed area in pump module where filter/regulator is to be installe
清洁泵模组的凹陷区域，此区域将安装滤清器/调节器。
3.
THE NATURAL BOUNDARY REDUCTION FOR SOME ELLIPTIC BOUNDARY VALUE PROBLEMS WITH CONCAVE ANGLE DOMAINS
凹角型区域椭圆边值问题的自然边界归化
4.
Artificial Boundary Conditions for Two Exterior Problems with Concave Angles;
凹型区域上两类外问题的人工边界条件
5.
Research on the laws of hydrocarbons rich accumulation and oil and gas exploration area in Jingling Depression;
江陵凹陷油气富集规律与油气勘探区域研究
6.
Natural Boundary Element Method for an Anisotropic Problem in an Infinite Domain with a Concave Angle
无穷凹角区域各向异性问题的自然边界元法
7.
Control of source rock on hydrocarbon accumulation and prediction of favorable plays in the Bozhong Depression of the Bohai Sea waters
渤海海域渤中凹陷源控油气作用及有利勘探区域预测
8.
A small, sunken area allowing access or light and air to basement doors or windows.
采光井允许出入或光线和空气进入地下室门窗的凹陷的小区域
9.
The depressions seen in the lower half of the specimen were caused by a staghorn calculus which has been remoed.
肾下极凹陷区域是由于鹿角样结石压迫所致，结石已经取出。
10.
A Model for Representing and Reasoning of Spatial Relations between Simple Concave Regions
简单凹形区域间空间关系的一种表示及推理模型
11.
An indented or concave surface or area.
凹陷，洼地凹的表面或地区
12.
a concave percussion instrument made from the metal top of an oil drum; has an array of flattened areas that produce different tones when struck (of Caribbean origin).
由油鼓的金属顶端制成的凹入的打击乐器；具有当打击时能够产生不同音调的平台区域。
13.
Techniques and Applied Studying of Reservoir Prediction in Biyang Middle Depression;
泌阳凹陷中部深凹区储层预测技术研究
14.
Mechanics of Salt Tectonics in Laizhouwan Sag,Offshore Bohai Bay Basin
渤海海域莱州湾凹陷盐构造成因探讨
15.
Study on Geo thermal History in Mesozoic Era of ZQ Depression in Zhangwu Area
彰武地区中生代张强凹陷地热史研究
16.
The conditions for oil accumulation is Liuxi Area of Raoyang Depression are analyzed.
分析了饶阳凹陷留西地区的成藏条件。
17.
Research on Petroleum Reservior-forming Conditions in the West of Biyang Depression. Nanxiang Basion;
泌阳凹陷西部地区油气成藏地质研究
18.
Tectono-Sedimentary Analysis of Laoyemiao Region in Nanpu Depression
南堡凹陷老爷庙地区构造-沉积分析