轨道的

The-430m track drift in Xuchang Coal Mine is a common passage for pedestrian and track transport.

针对许厂煤矿的-430m轨道运输斜巷行车兼做行人的特点，为满足行车不行人，行人不行车的规定，提出了一种新型矿井轨道斜巷人车安全闭锁装置。

Owing to the installation of vertical pentagonal rollers in curved track sections and installation of steel rope clampers to the mining cars, the traction steel ropes are brought into restriction and the mining cars can travel along the curved tracks. Thereby, the track transportation system consisting of hoisting cranes, tracks and mining cars is applied in the smallradius longcurve inclined shafts.

通过在轨道曲线段安设五花立辊、给矿车安装绳卡器等一系列新技术，实现了约束牵引钢丝绳，从而使矿车按曲线方向行驶的目的，以及&提升机+轨道+矿车&的有轨运输系统在小半径、长曲线斜井中的使用。

Question 7: How to determine the vertical elevations of the existing and planned rail transit lines?

现有的轨道交通以及规划中的轨道交通的竖向标高应该怎样考虑？

Real track isn't built out of 3rd order polynomials – it's built out of tangents, curves and easements.

真实的轨道并不是由三次多项式组成的–真实的轨道是由切线、弧线和介曲线。

Electric traction has become the development orientation of rail traffic traction power.

交通是社会经济运行的大动脉，轨道交通又一直是我国交通运输业的主体，而电力牵引已经成为轨道交通牵引动力的发展方向。

In recent years, although our country also sped up has constructed the city urban rail transit system the step, but city urban rail transit in our country new things, also did not have the mature theory is the instruction, also did not have the system the experience to be possible to follow.

近年来，虽然我国也加快了建设城市轨道交通系统的步伐，但城市轨道交通在我国还是一个新鲜事物，既没有成熟的理论为指导，也没有系统的经验可循。

City has a variety of rail cars in the field of self-strength, so that the urban rail industry enterprises to obtain a broad space for development.

市一中的自我轨道车领域的各种力量，使城市轨道交通行业企业获得广阔的发展空间。

If that orbit is also in the plane of the equator, the satellite will hang in the sky over a fixed location in a geostationary orbit.

如果那轨道也是在地球赤道的飞机中，卫星将威胁一在一同步轨道中的固定的位置在天空中。

The multi-impulse suboptimal solutions are presented for the formation reconfigurations between the elliptical formation and the pendulum formation, and the control scheme can be obtained directly from the initial and the desired relative orbits by using these solutions, at the same time the fuel consumption is suboptimal.

对于后面两种编队重构形式，本文也提出了一个多冲量次优控制解，这个解的优点是既满足了燃料消耗较优的条件，又只需根据初始相对轨道和目标相对轨道参数即可很容易计算出相应的控制策略。

Mr. Yu expressed that Chengdu metro thought a lot about AFC system, and Doctor Liu Sining who is the vice general manager in charge of equipments and operation takes charge of this job.

于总表示，成都地铁非常重视AFC系统的工作，并由公司主管设备与运营的副总经理刘思宁博士牵头抓这项工作，因为AFC系统是轨道交通网络化运营的关键系统，与轨道交通运营效率密切相关。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷