Firstly, this thesis studied the characteristics of exhaust inspection methods for in-use vehicles.
本文首先研究了在用车排气检测方法的特性。
The economics and environmental effect of gas fuel refitment on in-use vehicles are comprehensively analyzed.
对在用车改装燃气装置后的经济性和环保性进行了综合分析。
Contractors must not under any circumstances use vehicles to transport personnel that has not been designed and approved for such purposes.
不管在何种情况下，承包商不得使用非专为运送人员设计并未得到运送批准的车辆。
Controlling of exhaust emission of in-use vehicles is one of effective means to decrease the percentage sharing in the atmosphere pollution for vehicle exhaust emission.
控制在用车的排气是降低汽车排气对大气的分担率的有效方法之一。
The coming use of autonomous vehicles, for example, poses thorny ethical questions.
例如，即将投入使用的自动驾驶汽车带来了棘手的伦理问题。
Yet much of the criticism is based on the use of "gasoline clone" vehicles that do not incorporate even the simplest design improvements that are made possible with the use of methanol.
然而，大部分批评都是针对“克隆汽油车”的，这些车并没有为使用甲醇而做出哪怕最简单的设计上的改进。
Sure, in the past electric vehicles have their problems, namely, a limited driving range, and very few recharging points, which limited their use.
当然，在过去，电动汽车曾面临一些问题，如有限的行驶里程和紧缺的充电站，这都限制了人们对电动汽车的使用。
A recent study shows that meat consumption is one of the main ways that human can damage the environment, second only to the use of motor vehicles.
最近的一项研究表明，对肉类的消费是人类破坏环境的主要途径之一，仅次于机动车的使用。
Via such networks, libraries share their books with each other through the use of delivery vehicles.
各个图书馆通过这样的网络，利用送货车来共享馆藏图书。
Cars powered by gasoline were sold for many years before hybrid vehicles that use gasoline, electricity, and solar energy. Car companies are now making cars that are fully powered by electricity only.
在使用汽油、电力和太阳能的混合动力汽车出现之前，汽油动力汽车已经销售了很多年。汽车公司现在正在生产完全由电力驱动的汽车。
From now on, an increasing proportion of the vehicles they produce will use the latest technology to achieve low or zero emissions.
从现在开始，越来越多由他们生产的汽车将会使用最新技术以实现尾气低排放或者零排放。
For those countries which depend heavily on electric energy that is imported or produced from oil, mass use of electric vehicles is not necessarily advantageous for the system as a whole.
对于那些严重依赖于进口电能或是由石油转化成的电能的国家，大量使用电动汽车对整个系统来说是没有好处的。
Yet in Europe use of natural-gas vehicles is derisory.
然而，在欧洲使用天然气燃料的汽车少的可笑。
In America, the optimum density for the best use of road space is around 50 vehicles per lane-mile.
在美国，道路最佳使用效率的理想车辆密度大约是每车道英里50辆车。
Within ten years, driverless vehicles that use lasers and radars to sense their surroundings will be able to thread their way through traffic.
十年之内，无人驾驶车辆将能够在道路交通中凭借激光和雷达感知周围环境而穿行。
With demand for lithium set to grow, some question whether Earth's crust contains enough of the metal to sustain its use in vehicles.
随着将来锂需求的增加，出现了一些诸如地壳中该金属含量是否可以维持其在汽车行业的问题。
Cars that use sensors to recognize other vehicles, pedestrians and bikes will drive more safely.
这类使用传感器来识别其它车辆，行人和自行车的汽车将行驶的更加安全。
And we don't feel the need to create every component in-house, either. We encourage suppliers to use our vehicles as a test bed for new ideas.
我们并不认为需要自己制造所有的零部件，我们鼓励供货商使用我们的汽车作为新创意的测试。
But they seem particularly hard hit by the slowdown as the newly unemployed use private vehicles to start unlicensed rival services.
而新失业者使用私家汽车非法开展出租车业务使出租车司机受到的打击更为严重。
One is to accept the range limit and design small, thrifty vehicles specialised for city use.
第一，接受有限行驶里程的缺点，制造小型经济型汽车供城市交通专用。
The powder could also provide a safer, more convenient way to store methane fuel for use in vehicles powered by natural gas.
此外，干水也能为天然气动力汽车提供一种更安全更便利的甲烷燃料存储方式。
Mortuaries use lead vehicles, often a mini-van, with amber or purple lights on top to alert drivers to processionals.
殡仪馆用的头车通常是一辆小型货车，顶部有琥珀色或紫色的灯提醒其它司机这是葬礼车队。
But since cobalt oxide is so reactive and costly, most experts deem it unsuitable for widespread use in hybrid or electric vehicles.
但因为钴氧化物是如此的昂贵且易起反应，大多数专家认定它是不适于在混合动力或者全电动汽车中大规模使用的。
For example, the use of wheeled vehicles to transport goods and the separation of materials by gravity-gradient processes can be modified to be used in lunar conditions.
举例来说，轮式载重车辆和依赖重力实现材料剥离的技术，经过改进是可以在月球重力条件下使用的。
This would allow the use of existing fossil-fuel vehicles and fuel-distribution systems, but with much reduced environmental impact.
这种燃料可以用于现有的化石燃料机车和燃油配送系统，而且所造成的环境影响比原先的小得多。
Most experimental electric vehicles today use some form of Li-ion batteries and many experts agree the technology is ready for the first generation of electric vehicles.
目前大多数实验性电动汽车都采用某种形式的锂离子电池，许多专家都认同，锂离子电池技术已经可以应用于第一代电动汽车上了。
Most experimental electric vehicles today use some form of Li-ion batteries and many experts agree the technology is ready for the first generation of electric vehicles.
目前大多数实验性电动汽车都采用某种形式的锂离子电池，许多专家都认同，锂离子电池技术已经可以应用于第一代电动汽车上了。
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