新的动力机械和人工肥料现在已经完全改变了从石器时代开始的一种生活方式。
New power machinery and artificial fertilizers have now totally transformed a way of life that started in the Stone Age.
水是机械动力的主要来源，而到了17世纪末，人们认为仅英格兰就有2万个左右的工作磨坊。
Water was the main source of mechanical power, and by the end of the seventeenth century, England alone is thought to have had some 20,000 working mills.
英国有大量的煤；然而，当时还没有有效的方法来产生机械能或为机器提供动力。
Great Britain had large amounts of coal; however, there were not yet efficient means by which to produce mechanical energy or to power machinery.
总之，如果没有一种新的可持续提供动力并且可移动的能源，就没有新机械化时代的产生。
The new age of machinery, in short, could not have been born without a new source of both movable and constant power.
玉米、棉花、水稻、大豆和小麦的生产已在很大程度上实现了机械化，但许多高价值、劳动密集型的作物，如草莓，都需要劳动力。
Production of corn, cotton, rice, soybeans, and wheat has been largely mechanized, but many high-value, labor-intensive crops, such as strawberries, need labor.
玉米、棉花、水稻、大豆和小麦的生产已在很大程度上实现了机械化，但许多高价值、劳动密集型的作物，如草莓，都需要劳动力。
Production of corn, cotton, rice, soybeans, and wheat has been largely mechanized, but many high-value, labor-intensive crops, such as strawberries, need labor.
到2007年，加州几乎一半的葡萄干都是用机械收割的，劳动力人数也从原来的5万人缩减到了3万人。
By 2007, almost half of California's raisins were mechanically harvested and a labour force once numbering 50,000 had shrunk to 30,000.
由于劳动力是他们最大的成本之一——平均占美国农场生产成本的42%——他们开始使用机械收割。
With labour one of their biggest costs—42 percent of production expenses on U.S. farms, on average—they started using a mechanical harvest.
由于劳动力成本是他们最大的成本之一——平均占美国农场生产费用的42%——他们开始使用一种由酿酒商使用的机器改装而成的机械收割机。
With labour one of their biggest costs—42 percent of production expenses on U.S. farms, on average—they started using a mechanical harvester adapted from a machine used by wine makers.
现代一级方程序赛车的引擎和变速箱可以算得上是这个星球上最受关注的机械。所有人都在在激烈的研发竞争以求得到更强有力的动力。
The engine and transmission of a modern Formula One car are some of the most highly stressed pieces of machinery on the planet, and the competition to have the most power on the grid is still intense.
它可以作为汽车，火车和重型机械的动力。
在新的研究中，研究者们设计并建造了一种机械翅果，它的动力与真正的翅果很像。
In a new study, researchers have designed and built a mechanical samara whose dynamics are very similar to those of nature's samaras.
通过第三年的训练，大多数住院医生机械的掌握了解了心理动力学心理疗法理论，但是很多没有临床的实践经历。
And by the third year of training, most residents have had didactic teaching about psychodynamic psychotherapy, but many have not had experiential clinical exposure to it.
在测试过机械翼果之后，研究者们又造出了自带动力源，远程控制的机器翅果。
After testing the mechanical samara, the researchers then built a variety of remote-controlled robotic samaras with onboard power sources.
滑行减少了机械压力，因为你是利用由加速获得的动力使车前行。
Coasting reduces mechanical stress because you use the momentum you gain from building up speed to keep the car moving forward.
科幻小说里常常能见到有生命的电脑和满天飞的汽车，而在蒸汽朋克小说里，这些玩意儿都被蒸汽动力机械和漂浮的飞艇取代了。
In Steampunk literature, the living computers and flying cars of science fiction are typically replaced by hulking steam-powered machines and floating dirigibles.
有一个大范围的间距双层玻璃墙，将热空气向上引导到一个机械楼，以为除湿提供动力。
There's a wide-spaced double-glazed wall, which channels hot air upwards to a mechanical floor where it's harnessed for dehumidification.
多亏了拖拉机、联合收割机、玉米收割机和其他的农用机械的出现，农业劳动力现在只占了总劳动力不到2%。
Thanks to tractors, combine harvesters, crop-picking machines and other forms of mechanisation, agriculture now accounts for little more than 2% of the working population.
因为该理论牵涉的领域庞杂，包括行为心理学、机械学，控制理论学和液体动力学。
That is because the whole messy business involves elements of behavioural psychology as well as the laws of mechanics, control theory and fluid dynamics.
那家公司在培训我的时候就给我工资，最后，我成为一个飞机运输动力改造机构机械图的起草人。
The company paid me while they trained me, and eventually I became a drafter of engineering drawings for the Aircraft Carrier Propulsion Overhaul Department.
当劳动力需求降低时，公司希望像封存昂贵机械那样留住这些员工。
When demand for Labour falls, firms want to hang on to them, just as they might mothball an expensive piece of machinery.
动力与机械，金钱与货物，只有令我们解放的条件下才是有用的。
Power and machinery, money and goods, are useful only as they set us free to live.
不过，一些仍然没有足够的效率，把化学能转化机械动力。
However, some are still not efficient enough to turn chemical energy into mechanical power.
机械系统用来工作的系统或装置，如汽车或手持式凿岩机，包括其动力源和辅助设备。
A system or device for doing work, as an automobile or a jackhammer, together with its power source and auxiliary equipment.
他从机械表的构造中学到了管理企业的关键：完整的结构组成，合理的配合，要有动力。
The structure of a mechanical watch has taught him keys to running a business: completeness in structural components, close cooperation between different parts, and strong motivation.
水车提供动力，转动面粉厂的磨石和驱动其他机械。
The water wheels provided the power to turn the grindstones of flour mills and run other machinery.
本文研究石油机械企业多产品生产的规划决策问题，运用系统动力学的原理建立了相应的系统模型。
This paper researches the planning and decision making problem of petroleum mechanical multiproduct enterprises, and establishes the corresponding system model by using systematic dynamic principle.
该计划是为模拟的运动学和动力学的平面和空间机械系统。
The program is intended for simulation of kinematics and dynamics of planar and spatial mechanical systems.
初步研究表明：非线性对微机械电子系统动力学行为有着严重的重要的影响。
The research indicates that nonlinearity has a very important effect on the dynamical behavior of MEMS system.
初步研究表明：非线性对微机械电子系统动力学行为有着严重的重要的影响。
The research indicates that nonlinearity has a very important effect on the dynamical behavior of MEMS system.
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