地线

The system of differential equations for a geodesic line on an algebraic surface was discredited into a nonlinear system. Then it was solved numerically based on iterative methods.

在算法中，把决定代数曲面测地线的微分方程组离散为一个非线性方程组，然后采用迭代数值方法求解。

The interconnection equipment electric cable is longest may reach 5 m reaches 5 level of analysis situs connections through the USB concentrator by the chrysanthemum chain analysis situs form realization but outside meets 127 USB equipment.

该文依据的是USB1.1协议规范，总线一共4根：5V电源线、地线及两根以差分形式驱动的数据线D＋、D－。连接设备的电缆最长可达5 m，通过USB集线器以菊花链拓扑形式实现多达5级的拓扑连接，可外接127个USB设备。

The geodesic eqations of vaidya space-time in the new coordinate can reach the event horizon farther than the apparent horizon.

而新坐标下的Vaidya时空的测地线方程可以达到比表观视界更远的事件视界处。

At the Arctic Circle, the sun cannot be seen above the horizon in December.

北极圈在12月份，在地平地线之上是看不到太阳的。

This paper deals with the design and optimization of tree based power/ ground network in the BBL VLSIs which is a new kind of layout patlern.

对于这种模式下电源和地线的设计和优化，至今还没有很好的讨论。

Considering the factors such as randomness of natural lightning locus and the coexistence of primary and secondary leaders, it is necessary to lead in the concept of dynamic lightning protection shielding angle. It is suggested that the angular bisector of practical protective angle formed by ground wire or earth pin in UHVAC transmission line and conductor should be aligned with the direction of lightning leader as well as the ratio of vertical span to horizontal span and the impact of wind speed should be considered.

考虑自然闪电轨迹的随机性和雷电主先导与次先导并存现象等因素，有必要引入动态防雷保护角概念，建议特高压交流线路中地线对导线的实际保护角形成的角平分线应与雷电先导的来向一致，并应计及垂直档距和水平档距的比值和风速的影响。

With some methods, current is introduced into the earth by grounded lengths of wire.

有些方法是用各种长度的接地线将电流输到地下的。

Also we discuss the existence of infinite closed complete geodesic in a nocompact Riemannian manifold with nonnegative curvature.

利用核心的思想，我们还探讨了无穷多闭测地线等几何结构问题。

Any voltage present at the instrumentation amplifier inputs with respect to the amplifier ground is referred to as a common-mode voltage.

它完全抑制了测量放大器输入端相对于放大器地线的任何电压。

The common-mode voltage range limits the allowable voltage swing on each input with respect to the measurement system ground.

共模电压抑制了每个相对测量系统地线输入端电压的允许波动范围。

The good news is that after formatting from the command line to FAT32 (format /fs:fat32 /a:4096 drive:) all but one of the problematic games that I tested work perfectly.

好消息是，从指挥线后格式化了FAT32(格式/曾荫权：了FAT32/答：4096年径：)所有问题，但其中的游戏测试工作，我很好。

In Amsterdam. He is a Dutch painter, draftsman, and etcher of the 17th century, the greatest artist of the Dutch school, a master of light and shadow whose paintings, drawings, and etchings made him a giant in the history of art.

伦勃朗是一位17世纪画家、绘图家、版画家，荷兰学派的最伟大艺术家，他的明暗法的大师，他的绘画、素描和版画使他成为一位艺术史上的巨匠，其画作体裁广泛，擅长肖像画、风景画、风俗画、宗教画、历史画等。