The front roll (active roll)realizes automatic track-propulsion;
前辊（活动辊）实现自动跟踪推进；
If you're on a witness protection program or you're sort of fugitive you probably don't want to sit on the front roll.
如果你在证人保护计划之内，或者是个逃犯级人物，就尽量不要坐在前排了。
When this happens uniformly across a large front, a roll cloud may form.
由于同时发生在一个面积广阔的锋面，于是就形成了这种卷云。
Roll axis - Longitudinal axis, passes through the airplane from front to rear - wing up and wing down control is by ailerons and flight spoilers.
横滚轴—又称纵轴。由飞机的前部通向后部。机翼下运动由副翼和飞行扰流板控制。
This amazing picture shows a rare phenomenon called a roll cloud which tend to form ahead of a cold front and can stretch for miles.
这张惊人的图片展示了一种叫做云卷的罕见现象，它往往形成于冷锋之前，并能延伸数英里远。
Uranium mineralisation occurs in coarse sandstones between clay horizons within a braided channel system with apparent tabular and roll front deposit characteristics.
铀矿化带出现在粗粒砂岩内，其介于粘土层之间，位于网状河道体系内，具有明显的板状和卷状矿床特征。
When this happens along a front, a roll cloud can form, often with air actually circulating along the horizontal axis of the cloud.
在这种情景发生之前，云卷往往可以形成与实际横向运动云的循环空气。
The interior is updated with a revised instrument pack placed in front of the driver and a new top roll to the facia.
内饰经过更新，驾驶座前有修改过的工具箱，还有全新顶级的转速表。
Coil springs, anti-roll bars and shock-absorber rebound springs are utilized front and rear.
线圈弹簧，防侧倾杆和减震器弹簧的反弹，利用前部和后部。
To bat a pitched ball by tapping it lightly, causing it to roll slowly in front of the infielders.
用短打打出球轻击棒球致使棒球在内野手面前缓慢滚动。
Front suspension is by MacPherson struts, with coil springs and an anti-roll bar.
前悬挂是麦花臣支柱与线圈，弹簧和防滚杆。
Thee basin began to roll downhill. The monkey ran as fast as he could and was soon in front of the toad. He chased after the rolling basin.
那木盆率先滚下山去。猴子拼命地跑，不一会儿就超过了蟾蜍，它拼命地追着木盆。
Let your fly line roll out in front of you. Your line should for a loop and then straighten out before laying on the water.
使主线在持竿者前面滚动出线。主线会形成一个环形，并要使得线环在落水前直伸开来。
The helicopter should be flying inverted and backward as it passes in front of the pilot, the helicopter should continue to roll back to upright after is passes in front of the pilot.
当直升机到达操控者的正前方时，机体刚好成为倒飞后退飞行，继续执行侧滚的动作，等到直升机通过操控者的正前方以后，机身便恢复为正飞后退飞行。
The selection method of roll forging process parameters of middle tonnage automobile front axle and die design outline were stressed.
论述了中吨位汽车前轴辊锻成形工艺参数的确定方法和模具设计要点。
Pay attention to pressing the base of your front foot great toe down to the floor since there is a tendency to roll to the outside edge of the front foot.
注意把前脚的大脚趾的底部压向地板，因为前脚的外侧有蜷缩的倾向。
But we are going to roll the story back even before then back to the days of Pong which is what we are standing in front of here, isn't it?
但我们现在要回顾的是更早的历史，那就要回到弹球游戏的时代了。现在在我们面前的就是一台街头弹球游戏机，是吗？
In this paper, the new type of active roll stabilizers are mounted on the front and rear axle of an experimental medium-duty truck, which are connected to the frame through their hydraulic actuators.
将新式主动横向稳定器安装在中型货车的前轴和后轴，通过液压缸与车架连接。
A stripper is arranged in front of the leveling roll. A wool brush roll is arranged above the stripper.
在平整辊的前方设置剥取罗拉，剥取罗拉的上 方是毛刷辊。
A random roll and a leveling roll are sequentially arranged at the front of the two doffers. The doffers, the random roll and the leveling roll rotate anticlockwise.
道夫的前方均依次设置杂乱辊、平整辊，所述道夫、杂乱辊及平整辊均延逆时针方向转动。
The process experiment and result analysis of preceding roll forging for heavy truck front axle introduced in this paper.
介绍了重卡前轴预成形辊锻工艺试验与结果分析。
The front anti-roll bar uses the effective blade system.
前防倾杆的用途有效的刀片系统。
Practical gals wore their hair tied up in a roll and covered with a headscarf tied in a knot at the front.
讲求实际的女孩们将头发卷成卷，用头巾打结，固定在前额。
With the front two-thirds filling with water, the vehicle shuddered repeatedly from the flood's force. "We're still moving," Rogers told his shivering companions. "We could roll over at any time."
车身前部的三分之二都装满了水，由于洪水的巨大冲击力，汽车不停地摇晃。
But you get me up on that gangway, and you roll them out in front of me. Keyboards have millions and billions of keys that never end.
而你现在让我走过跳板，走到城市里，等着我的是一个没有尽头的键盘。
The front stretcher adopts magnetic powder breaker to provide linear tension, to solve the relative slip between conveyor belt and damping roll;
前伸张器采用磁粉制动器线性的提供张力，解决输送带与阻尼辊间的相对滑动；
The front stretcher adopts magnetic powder breaker to provide linear tension, to solve the relative slip between conveyor belt and damping roll;
前伸张器采用磁粉制动器线性的提供张力，解决输送带与阻尼辊间的相对滑动；
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