一包

Meshing properties and application of major conical surface double envelope Hourglass worm gearing;2. In this paper, the regularities of undercutting and topping of major conical surface envelope hourglass worm is researched.

分析了大锥面包络环面蜗杆的齿顶变尖和根切规律，并通过和平面包络环面蜗杆的比较，得出其在根切和齿顶变尖这两个方面具有比平面包络蜗杆更优良的性能，因而是一种在实际中可替代平面包络、具有广泛应用前景的新型包络蜗杆传动。

Owing to the key conclusion, this paper lays emphasis on the possible ways of realizing the singular conjugation by single—enveloping method. It is proved that the hyperbolic normal arc surface and the involute helicoid both may conjugate in singular points on the condition of single—envelope.

在奇点共轭理论的工程实现方面，文中明确指出二次包络是获得奇点共轭的有效手段，但并非唯一手段，在满足特定的运动几何条件下，一次包络即可获得奇点共轭。

We have toast, croissant, and pie. Which do you prefer?

我们有方包、牛角包和馅饼，您要哪一种？

In the cylindrical worm pair with disk annular grinding wheel enveloped worm, the worm axial profile is concave profile.

圆弧面砂轮包络圆柱蜗杆传动，兼备了二次包络成形的特征和凹面齿圆柱蜗杆的特征，是一种很有特色的新型圆柱蜗杆传动。

On the condition of "many-head" and "small drive ratio",the plane double enveloping hourglass worm can not settle the problem of undercutting and sharpening simultaneously.It has devoted to a new type hourglass worm_sphere double enveloping hourglass worm.

考虑到平面二次包络环面蜗杆传动在多头小传动比条件下根切与齿顶变尖的矛盾很难同时解决且啮合性能较差，介绍了一种新型环面蜗杆传动——球面二次包络环面蜗杆传动。

Well, the next logical step is to take your bag, draw it close, and cuddle.

好吧，接下来顺理成章一步就是：拿起你的包，并把包靠近你，然后勾着它。

This paper de-duces the equation of scroll case surface with the enveloping theory,builds the envelope sur-face of ellipsoides with variable radius by using the the method of constructing an ellipse withseveral arcs and presents a new and simple method fOr geometry moulding of scroll case sur-face.

蜗壳是水电站的重要部件之一，本文以包络理论推导了蜗壳曲面方程；并采用分段圆弧构造椭圆的方法构造了变径椭球包络曲面，为蜗壳曲面的几何造型提出了一种新的简便方法。

Then it puts its packet on the wire and simultaneously listens to see if any other device sent something at the same time, which would cause a collision and garble both packets.

然后把该包放到网上，同时听一听看看在同一时刻是否有其它的设备也在发送信息，因为它会引起碰撞，并弄坏两个包。

In the same time, the butt spliced steel cord can be gum edged, thus forms an automatic steel cord cutting and splicing line.

同时对对接后的钢丝帘布可进行贴合子口包胶条及包边等。形成一条钢丝帘布裁断接头自动生产线。

As a result, the development of networks is restricted severely. This paper presents a tri-stage memory array architecture to solve the problem, which can accomplish the arbitrary high-speed packet buffer theoretically.

提出一种新型的三级存储阵列结构可以成功解决数据包存储器的容量和带宽问题，理论上可以实现任意高速数据包的缓存。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。