查询词典 concave line

Neither is the nasal bone concave,resulting in a "dish-faced" profile; nor convex, giving the dog a Romannose.

鼻梁骨既不是向下弯曲，形成&盘子&脸；也不是向上突起，形成罗马鼻。

Neither is the nasal bone concave, resulting in a "dish-faced" profile; nor convex, giving the dog a Roman nose.

骨髓良好，显示出连接牢固，骨骼发达、稳健，但不粗糙不沉重。

In consideration of the difference between two parts,insert blocks on moving half and fixed half were combined;and the compounded core-pulling of slanted pushing rod,dog-leg cam and slide block was applied to finish the demoulding of internal and external side concave.

介绍了1副在同1副模具中注射成型2个差异性较大的塑件的模具结构，该模具设计时综合考虑了2个塑件的差异性，分别采用了动、定模镶块组合的结构形式，并使用斜推杆、弯销与滑块复合抽芯来完成内外侧凹脱模。

The crystal structure analysis confirmed the unequal "double-concave" structure.

单晶结构分析揭示了该分子的不对称性的双凹面结构。

Under the universal equation of double-concave disc-shaped bubble, the analytical solution has been deduced. It confirmed theoretically that ethanol can lead to the larger volume of red blood cells. The fluorescence experiment result verified this conclusion.

通过建立双凹圆盘形膜泡的普适方程，得到了解析解，从理论上证实了乙醇作用能引起红细胞体积变大的可能性，并利用荧光分析技术证实了这一结论。

When ethanol goes into the red blood cells, osmotic pressure changing causes the cell vertices moving to the center, and double-concave disc surface will be the spherical one. It results in the red blood cell volume larger and surface area smaller, causes the ratio of the surface area and volume significantly decrease, and the resistance tensile capacity of red blood cells reduced.

分析认为乙醇进入红细胞后，由于渗透压的变化将使细胞顶点向中心移动，双凹形的圆盘曲面将向球形细胞转变，导致红细胞体积变大和表面积的减少，引起红细胞表面积和容积的比值显著变小，红细胞的抗张能力降低。

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。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？