The final step came when steam was introduced into the cylinder to drive the piston backward as well as forward, thereby increasing the speed of the engine and cutting its fuel consumption.
最后一步是将蒸汽引入气缸，使得活塞前后推动，从而提高了发动机的速度，降低了燃料消耗。
They work with remote control devices that change the direction, position and speed of a German-made cutting machine that slices back and forth along a 300-metre-wide coal face.
他们操作的遥控装置可以改变截煤机的方向、位置和速度，这台德国产的截煤机可以沿着一道300米宽的煤面来回进行切割。
Passengers will ultimately be able to speed from the Italian city of Milan to Zurich in less than three hours and further north into Germany, cutting the journey time by an hour.
旅客们最终将可能把从意大利城市米兰到苏黎世的旅程缩短到三小时以内，而且能进一步北上德国，将路程时间缩短整整一个小时。
Now it aims to speed up the methane production cycle from years to a matter of days at the same time as cutting the need for more land to bury garbage.
现在他们的目标是加快甲烷产品的生产周期，从几年变成几天，同时减少对掩埋更多垃圾的土地需求。
The battery-powered device uses cutting edge bionic technology to adapt to a person's stride, speed and the type of ground and can help prevent stumbles.
这款通过电池供电的假肢利用了仿生技术，切合了使用者走路的步伐步调以及地面状况，这就避免了截肢患者走路蹒跚的问题。
Cutting the red tape that ties up construction projects could speed up the creation of all sorts of businesses.
摈弃那些束缚建设的繁文缛节就能加速各种企业的创立。
The selection of the correct cutting speed has an important bearing on the economics of all metal cutting operations.
正确的选择切削速度对所有金属的切割操作成本都有有很大的影响。
If in the enthalpy increases, reduce the diameter of the jet and increase the gas flow, can often gain faster cutting speed and better cutting quality.
如果在焓值提高的同时，减小射流的直径并加大气体的流速，往往可以获得更快的切割速度和更好的切割质量。
So, choose as far as possible to improve the nozzle of small high cutting speed and cutting quality is useful, but the nozzle at low altitude may cause double arc phenomenon.
所以，选用尽量小的喷嘴高度对提高切割速度和切割质量都是有益的，但是，喷嘴高度过低时可能会引起双弧现象。
The selection of the correct cutting speed has an important bearing on the economics of all metal cutting operations.
选择正确的切削速度对所有金属的切削操作有着重要的经济上的影响。
In addition, too much cutting speed and big nozzle height can cause and the increase of the poor incision width.
另外，过大的切割速度和过大的喷嘴高度都会引起切口上下宽度差的增加。
On the premise of cutting quality guarantee, should as far as possible the cutting speed increase.
在保证切割质量的前提下，应尽可能的提高切割速度。
CNC plasma cutting machine, the selection of technological parameters for cutting quality, cutting speed and efficiency, the influence on the effect of cutting is very important.
等离子数控机切割机工艺参数的选择对切割质量、切割速度和效率等切割效果的影响是至关重要的。
Therefore, cutting the purity of oxygen, volume, velocity, and oxygen flow shape on the gas cutting quality and cutting speed has important implications.
因此，切割氧的纯度、流量、流速和氧流形状对气割质量和切割速度有重要的影响。
Increase of cutting ability or slowing down of cutting speed can reduce the kind of lag error.
增加切割能力或减缓切割速度即可减少这种滞后误差。
T-Mobile has a history of cutting prices aggressively. It was also the first carrier to offer wireless E-mail, the latest high-speed networks and a smartphone using the Android operating system.
T -Mobile一向有大幅降价之举，同时也是首家提供无线电邮、最新高速网络和安卓智能手机的运营商。
The conditions which have an important influence on metal cutting are work material, cutting tool material, cutting tool geometry, cutting speed, feed rate, depth of cut and cutting fluid used.
对金属切削有重要影响的条件有工件材料、刀具材料、刀具几何形状、切削速度、进给率、切削深度和所用的切削液。
If your axe is blunt, it will seriously affect the speed and efficiency of cutting trees.
如果你的斧头钝了，会严重影响砍伐树木的速度和效率。
During the working of paper cutting machine, both the speed of drawing paper and the revolving speed of cutter decide the length of paper.
在切纸机工作过程中，纸辊的拉纸速度和刀辊的旋转速度共同决定了切下纸张的长度。
This function can make numerical control system according to the point in the X coordinates, as the diameter of the workpiece calculated value spindle speed, and the cutting speed to be constant.
该功能可以使数控系统根据刀尖所处的X坐标值，作为工件的直径值来计算主轴转速，使切削速度保持恒定。
The study of the working technology of a high-speed dry-cutting gear hobber with green performance.
对面向绿色制造的高速干式滚齿机的干式切削加工技术进行研究。
Following the introduction of the characteristics and cutting mechanism of high speed machining, we educe the feasibility of the high speed machining difficult-to-machine materials.
首先介绍了高速切削加工难加工材料的特点，通过对高速切削机理的研究，分析难加工材料高速切削加工的可行性。
Even though sharpening the axe before chopping down a tree takes you sometime, the speed and efficiency of it will be improved a lot, and you will spend less time cutting down the same tree.
在砍到一棵树前，去磨斧头，即使会花一点时间，砍伐的速度和效率会提高很多，但是你会花更少的时间，减少花在同一棵树上的时间。
M. adjusted, by the use of high speed SCR gate, a new convening power source with output of 100a for plasma are cutting is developed.
调节为基础，利用快速可控硅做开关元件，研制的一台新型等离子弧切割电源——输出直流100a逆变切割电源。
The paper proposes a view of high-speed and compaction in favor of cutting comminution through researching theory of grain part.
通过对颗粒断裂理论的研究，提出了高速压紧条件下有利于物料粉碎的设计概念。
The paper proposes a view of high-speed and compaction in favor of cutting comminution through researching theory of grain part.
通过对颗粒断裂理论的研究，提出了高速压紧条件下有利于物料粉碎的设计概念。
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