Uphill and downhill should be done once.

上坡和下坡应当各做一次。

The paper regards the main roof strata in uphill and downhill mining of an inclined longwall as a elastic plate.

本文将倾斜长壁仰斜、俯斜开采的老顶岩层视为倾斜弹性板。

Participants should have basic cycling knowledge and ensure that they can control the bicycles properly during uphill and downhill.

参加者应懂得基本驾驶单车技术，能掌握上斜和落斜之技术。

The authors of the paper have investigated the use of a system that would see bumpers adjust to compensate for varying road conditions such as uphill and downhill stretches.

这篇论文的作者研究了这一系统的运用范畴，他们认为，保险杠是用来为各种复杂的道路状况如上坡路段和下坡路段来提供安全保障的。

Drivers go into the turn downhill and to the left before, moments later, turning it around to go uphill and to the right, often at insane velocities.

赛车先是经历一个下坡左转，过一会儿，又一个上坡右转，而且往往是在高速行驶途中。

And one answer gives cars going uphill priority on an icy mountain road, while another gives it to cars going downhill.

还有，在冰雪覆盖的山路上行车，要让上坡的车辆先行驶，但另一边，它又写道要给下坡的车让路。

The road in life, uphill to swagger, downhill to be timid and overcautious, way to go straight ahead, take a road to overlooking the foot.

在人生道路上，走上坡路要昂首阔步，走下坡路要谨小慎微，走阳关道要目视前方，走羊肠路要俯视脚下。

Taking the J-50 tractor as an example, the different working situations of the tractor (such as: tractor uphill without load, full loaded tractor downhill or uphill) were calculated and analysed.

并以集材-50拖拉机为例对空车上坡、满载下坡、满载上坡等工况进行了计算和分析。

If skiers can traverse a slope on both the little toe edge side of the uphill and the big toe edge side of the downhill ski; they can ski with parallel movements.

如果滑雪者可以遍历两小脚趾的上坡和大脚趾的下坡滑雪边缘一侧的边缘一侧的斜坡，他们可以滑雪平行运动。

Which ones are on a path of growth uphill and which ones are going downhill?

哪些人在攀登上山的小径，哪些人处于下滑的轨迹？

They need more braking time and accelerate more slowly than cars, because they usually go faster downhill and slower uphill.

重型车辆需要较长的煞车和加速时间。下坡较快，上坡较慢。

You cannot climb uphill by thinking downhill thoughts. If your work is gloomy and hopeless, it is because you are gloomy and hopeless. You must change your mind to change your world.

你不可能一边想着下山一边爬上山。如果你认为工作令人沮丧和绝望，那是因为你令人沮丧和绝望。你必须改变想法，才能改变你的世界。

You cannot climb uphill by thinking downhill thoughts. If your work is gloomy and hopeless, it is because you are gloomy and hopeless.

你不能上山的时候想着下山，如果你的工作抑郁和无望，那是因为你很忧郁和失望。

The next 2 km are uphill then flat and the 15k point is at the end of sharp downhill.

接下来的2公里是上坡，一段平坦路段，接着继续上坡，15公里点位于尖尖的坡顶。

You can't climb uphill by thinking downhill thoughts, if your work are gloomy and hopeless, it is because you are gloomy and hopeless, you must change your mind to change the world. -w. A.

你不能秉持走下坡路的思想向高处攀爬，如果你的工作暗淡无望，那是因为你的思想消极悲观，你必须通过改变思想来改变处境。

The tracks that every train enters and exits stations are built up downhill and uphill to reduce the subway operation costs.

每辆地铁在出站时轨道都是下坡的，进站时的轨道都是上坡的，这样的设计可以降低运营成本。

Hawthorne Avenue turns uphill, over the top, and downhill to a length of a thousand feet.

霍索恩大街总长有1000英尺，由上坡段和下坡段组成。

The utility model meets the requirements of different heels when people go uphill and go downhill.

本实用新型满足了上、下坡时对不同鞋跟的要求。