查询词典 concave polygon

Steel tubing in different shapes corrugated steel pipe can be divided into different types of pipe-shaped, conical shaped steel tube, steel tube shaped melon-shaped, double-concave profiled steel, double-convex shaped steel tube, profiled steel five plum-shaped, hexagonal shaped equilateral steel, semi-circular special steel round, steel octagonal shaped, diamond-shaped steel, hexagonal shaped steel tube, steel triangular shaped, oval shaped steel tube.

钢管异型管可分为波纹形异型钢管、圆锥形异型钢管、瓜子形异型钢管、双凹形异型钢管、双凸形异型钢管、五瓣梅花形异型钢管、不等边六角形异型钢管、半圆形异型钢圆、八角形异型钢管、菱形异型钢管、六角形异型钢管、三角形异型钢管、椭圆形异型钢管。

Eight-shaped double-disk sub-grass ditching device installed in the two pre-installed as "eight-shaped" arrangement of the concave disc of crushed corn stalks after the strong role of the sub-grass.

八字形双圆盘分草装置在开沟器前安装两个成&八字形&布置的凹面圆盘，对粉碎后的玉米秸秆有很强的分草排堵作用。

Finally ,by using AUTOcad2002 software, I draw part drawing, concave punch territory and mould assembly drawing.

最后利用AUTOcad2002软件绘制零件图、凹凸模版图、模具装配图，并入行设计审核。

In this paper an innovative method for machining sculptured surfaces is presented. By using a disc cutter with a concave end instead of traditional ball-ended or drum-shaped tools, and adjusting the cut- ted axis to swing relative to the component being machined under some special rules, the envelope formed by the trace of the tool-nose may have the same derivative up to the third order as the required theoretical surface.

本文提出了一种加工自由曲面的新方法，即采用中凹的盘形铣刀取代传统的球头或鼓形铣刀，在每一行程中让刀具轴线相对于工件按特定的规律摆动，使得在垂直于进给方向的法截面中，由刀尖轨迹形成的包络面与理论曲面的法截线具有相同的1～3阶导数，从而在保持精度不变的前提下，使实际行程次数得以大幅度的减少。

Workpieces as concave bending, convex bendingS bending can be achieved by bending to the shaping material, straighteningleveling of the shaping material are also available.

通过对型材进行弯曲，可获得平整内弯、外弯、S弯形状的工件，也可进行型材的校址和校平等特点。

Bracteoles flat or concave, more than 1 mm; bracts present.

小苞片平或者凹，超过1毫米；苞片宿存。

The caustics phenomena of electromagnetic wave propagation in concave reflector, the singularities of caustics, and the method of

40174032的一部分，得到如下结果：论文分析了利用Maslov方法求解非均匀介质中波动方程高频近似解的基本原理和求解过程，构造了介质系数只在一个方向变化时波动方程高频近似解的通用计算公式。

Large amount of concave and convexes, gate and column proportion has formed rich color and shadow relationship, plus renement in details, the whole building demonstrates strong sense of time, culture and characteristic architectural style.

洞口及柱式比例形成了丰富的色彩与阴影关系。加上细部的精致处理，使整个建筑体现出了强烈的时代感与文化气息以及鲜明的建筑风格。

Large amount of concave and convexes, gate and column proportion has formed rich color and shadow relationship, plus re nement in details, the whole building demonstrates strong sense of time, culture and characteristic architectural style.

洞口及柱式比例形成了丰富的色彩与阴影关系。加上细部的精致处理，使整个建筑体现出了强烈的时代感与文化气息以及鲜明的建筑风格。

The invention is also drawn to a coverslip with concave wells which act as reaction chambers when placed against a slide and filled with buffer.

本发明也提出了一种具有凹孔(530)的盖片(500)，当置于载片(510)之上时凹孔作为反应室并由缓冲液充满。

"Please accept this talisman as a token of our thanks."

请收下这个护身符以表达我们的感谢。

If I have that magic, I will be more acceptable in the society.

如果我拥有那种魔法，我将更加被这个社会所容纳。