边

In the end, the finite plate element method to unfold the curved surfaces is talked over in this chapter.

另外，在实际工程应用中，裁剪线两侧相邻的曲面片的边的边长在各自利用等效有限单元法展开时存在差异，且当曲面比较大时，这个误差较大，从而给施工带来不便，本章提出了修正的等效有限杆单元法，较好地解决了这个问题。

Its basic idea is to use the locus of the points, which are equidistant from two or three sides of a polygon.

其基本思想是利用与多边形两条边或三条边距离的点的轨迹。

It is called Equilateral Triangle that a triangle has equal legs.

三条边都相等的三角形叫做等边三角形。

Take for example an equilateral Triangle -- who represents with us a Tradesman of the respectable class.

现在，拿一个等边三角形做实验--呈现在我们眼前的等边三角形，他来自受人尊敬的阶层，是一位零售商。

Like Picture 2, a triangle with three same sides is called an equilateral triangle.

象（2）一样，有三条边相等的三角形叫做等边三角形。又叫正三角形。

Triangle with three equal sides is called equilateral triangle.

*三条边都相等的三角形叫做等边三角形。

However, one who demonstrates this for scalene or equilateral triangles does so from principles that are necessarily not first principles.

不过，一个人特别论证不等边三角形或等边三角形，是从必然非第一原理论证。

Thus saying, from her side the fatal Key, Sad instrument of all our woe, she took; And towards the Gate rouling her bestial train, Forthwith the huge Porcullis high up drew, Which but her self not all the Stygian powers [ 875 ] Could once have mov'd; then in the key-hole turns Th' intricate wards, and every Bolt and Bar Of massie Iron or sollid Rock with ease Unfast'ns: on a sudden op'n flie With impetuous recoile and jarring sound [ 880 ] Th' infernal dores, and on thir hinges grate Harsh Thunder, that the lowest bottom shook Of Erebus.

V1：她边说边从身边取出那不祥的钥匙――人间万祸的媒介，向着大门转动她的兽尾，巨大的格子吊闸，被高高地拔起来，那吊闸坚固、沉重，除了她，即使用全地狱天使的力量也动弹不了它；随后她把钥匙放进锁眼里，旋开了复杂的弹簧，轻轻松开所有铁铸石炼的门鼻、门闩，轰隆一声，地狱的大门忽然开了，由于用力过猛，所以造成反跳，使得门键上的粗厉声响如雷鸣，连地狱最深的底层也被震动了。

I leave large leaves of kale and escarole in the tubs constantly so they can browse on them when the salad gets eaten.

我经常把卷心菜和涡荬的大叶子留在木箱里，因此他们在他们可以边吃边看。

We can not apply Galerkin methods with radial basis functions to the first boundary value problem (the Dirichlet boundary value problem) of the second-order elliptic equation, because it requires that the approximate functions should fit the essential boundary condition, while the spaces spanned by the radial basis functions fails to satisfy this kind of boundary condition, and it is the same for the higher-order elliptic equation.

我们不能直接应用这样的无网格算法求解二阶椭圆型方程的第一类边值问题(Dirichlet边值问题)，因为第一类边界条件是本质边界条件(对二阶椭圆型方程为Dirichlet边界条件)，而径向基函数的支集通常是全空间，由它们所生成的近似函数空间一般不满足这样的条件。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。