地线

Provided with ground wire and fuse for safety .

4.1.4 电源线路中必须接上地线和技安保险。

In this paper difference equation of motion fr om one point to another point on the earth is derived from the geodesic equation on the earth and spherical trigonometry formulas. Some difference track formul as of a maneuvering object are also given.

以大地椭球三角形模型为基础，利用地球表面二点间最短路径的大地线方程和球面三角形的有关公式，建立了由地球表面一点运动到另一点的差分运动方程，同时也给出了在进行航向机动时的差分运动轨迹。

In this paper differ ce equation of motion fr om one point to another point on the earth is derived from the geodesic equation on the earth and spherical trigonometry formulas. Some difference track formul as of a maneuvering object are also given.

以大地 椭球三角形模型为基础，利用地球表面二点间最短路径的大地线方程和球面三角形的有关公式，建立了由地球表面一点运动到另一点的差分运动方程，同时也给出了在进行航向机动时的差分运动轨迹。

A CAD tool based on a group of efficient algorithms to verify,design,and optimize power/ground networks for standard cell model is presented.

它应用了一系列高效的算法，为用户提供了电源线/地线网络的设计、优化和验证的功能。

They've understood there is a generalized concept of straightness.

他们已经知道有一个广义概念的直线，它被称为测地线。

In 1898, Hadamard produced a specific example of geodesics on a surface of constant negative curvature which had this property of chaos.

在1898年， Hadamard 构造了一个在常负曲率表面关于测地线的特别例子，这个例子具有上述混沌特性。

If the record player is equipped with an earth lead connect it to the GND terminal of the unit.

该电唱机如备有接地线，则应将它与本机的接地端子连接起来。

Ground the water heater by connecting the grounding wire from the electrical service ground to the ground screw located in the junction box .

热水器的接地通过从电气装置上将接地线连接到位于接线盒上的接地螺丝上实现。

Welding earth wire: separate copper woven wire into three pieces, weave it again and enwind the phase respectively as well as weld it on the shielded copper band with electric iron and soldering tin; polish steel band welding area with sandcloth, and firmly weld with armored cable after wrapping up with copper wire.

2焊接地线：将铜编织线拆开分成三份，重新编织分别绕各相，用电烙铁、焊锡焊接在屏蔽铜带上；用砂布打光钢带焊接区，用铜丝绑扎后与钢铠焊牢。

As per ex-area construction and design requirement, all the equipment, process piping and metel structure, steel platform, barrier inside the unit shall maintain continuous electricity and combined into the earthing net through BVR earthing wire.

14.3.4.1 按照防爆区施工技术规范要求和设计要求，装置区内所有设备、工艺管道及金属构架、钢平台、围栏等应连接成连续的电气通路并接地，采用BVR专用接地线与接地网连接。

I bought a nice wrist watch as a surprise for my wife's birthday.

我买了一个漂亮的手表想要给我妻子的生日一个惊喜。

We don t expect students to be sponges. You can t expect to absorb everything and not have any questions to ask.

我们并不期待我们的学生是一块海绵，你没可能接收所有的东西而不提出任何问题。