查询词典 concave

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。

Is a hollow tube with a closed concave base that permits the cylinder to stand upright.

钢瓶（图1）是中空的管道，封闭的底部是凹入的，这样可以直立起来。

Products for the system by cutting a piece of wood, wonderful workmanship excelling nature, the appearance of beautiful, practical, collectors, and ornamental value, good wood products, life up to several centuries-old, high school concave side of the product, not to hurt the coccyx, the role of good health in line with the scientific requirements of the human body posture, suitable for fishing,, travel, especially for the nation sat on the floor required the use of long-term, long-term use can play a role in the health of the waist, are home, meals, entertainment ideal choice for carry.

产品为一块木凿制而成，巧夺天工，外观精美，具有实用、收藏及观赏价值，好木料产品，使用寿命达好几百年之久，该产品边高中凹，不伤尾骨，具有良好的保健作用，符合人体坐姿科学要求，适合垂钓、遛鸟、外出旅行，尤其适合需要长期席地而坐民族使用，长期使用能起到对腰部的保健作用，是家居、外出、休闲娱乐随身携带的理想选择。

Among picosecond fluorescence spectroscopy setup, sample cell, one side is concave, and collimate optics system were designed and made. Which improve fluorescence collect rate 30%, and is key to experiment.

在荧光光谱装置中，设计制作了一侧为凹面的样品盒和准直光学系统，提高荧光的收集效率30%，对实验成功起了关键的作用。

Commissure face of seed deeply concave or sulcate.

果表面瘤状的或具小乳突。

The clip refers to the length and angle of the concave curve on the non-cutting portion of the point of the blade.

回形刀刃在刀尖的非切割部分采用的是凹曲线的长度和角度。

They are unevenly distributed along the retina, in the central retina and central macular area of about 3 □ concave angle exists only within the pyramidal cells.

它们沿着视网膜的分布是不均匀的，在视网膜中央的黄斑部位及中央凹大约3□视角范围内只存在着锥体细胞。

In this paper the natural boundary reduction for some elliptic boundary value problems with concave angle domains and its natural boundary element methods are investigated.

本文研究凹角型区域椭圆边值问题的自然边界归化及其边界元法。

Part II, the artificial boundary condition and its numerical methods based on natural boundary reduction for a hyperbolic initial boundary value problem in an infinite domain with a concave angle is investigated.

第二部分，研究一类具有凹角的无界外区域的双曲型初边值问题基于自然边界归化的人工边界条件及其数值方法。

Marc software, the two-dimensional simulation of isothermal extrusion forming process of globoidal cam was made. The influence of the different model cavity concave wedge angle a on the performance of filling billets was analyzed. It provided an important basis for the realization of cambered cam isothermal compression and the optimization of die structure.

用MSC。 Marc软件对弧面凸轮等温挤压成形过程进行了二维模拟，具体分析了不同凹模型腔楔角α对坯料填充性能的影响，为实现弧面凸轮等温挤压成形和优化模具结构提供了重要依据。

According to the latest census,our population has increased.

根据最近的人口普查，我们的人口增加了。

Used of walls decorated with or wainscoting .

用于墙壁；用嵌板或者墙裙来装饰。