It remained very difficult to procure food, fuel, and other daily necessities.
当时仍然很难获得食品、燃料和其他日用必需品。
Tanks are heavy on fuel, destructive to roads and difficult to park.
坦克耗油量大，对道路有破坏性，并且难以停放。
However, getting enough antimatter for the 26 trillion-mile, one-way trip to Alpha Centauri and storing such a volatile fuel for long periods is prohibitively expensive and difficult.
然而，要到达26万亿英里之外的半人马座阿尔法星，携带和储存足够量的反物质难度极大，这种燃料不仅状态不稳定，而且耗资不菲。
This is not just because the swamp's terrain makes firefighting difficult, but also because, counterintuitive as it seems, the Okefenokee wetlands provide ample fuel.
不仅仅是沼泽地形使灭火工作难以进行，还有一点似乎有些不可思议的就是，奥克弗诺基湿地本身也拥有大量易燃物。
That's fortunate for all life on Earth — because that's what allows stars to shine for billions of years — but it does make it a very difficult fusion fuel to utilize.
这是幸运的对于地球上的所有生命——因为正是因此才让星星们闪耀了数十亿年——但它造成了一个聚变燃料很难加以利用。
As a foodie, I will tell that it's difficult to look at food as fuel, rather than entertainment.
作为一名美食家，我会说，比起把食物当成一种乐趣，更难把食物当成能量。
This technique enables extraction of fuel from small, difficult-to-access coal seams, and could double the world's current coal reserves.
这项技术可以从窄而难以进入的煤层中提取燃煤，并可能使目前世界上的煤炭储量增加一倍。
Inside the core itself, "there is likely no water level," the assessment says, adding that as a result, "it is difficult to determine how much cooling is getting to the fuel."
堆芯内部的“冷却水可能已经蒸发殆尽”，评估报告还说，“无法确定究竟有多少冷却水到达了核燃料所在的位置”。
Hydrogen, which can be made electrolytically from water and used to power fuel cells, is difficult to handle.
电解水产生并给燃料电池供能的氢难以处理。
Much of the Pentagon's fuel goes to the air force, however, and reducing the consumption of jet fuel is much more difficult.
然而五角大楼的大部分燃料用在了空军上，而降低喷气式飞机的燃料消耗要困难得多。
The calculation of mass distribution characteristics of fuel in tanks is a difficult and complicated work.
飞机燃油质量分布特性计算是一项复杂困难但又是十分重要的工作。
In the model, a new method of calculating fuel consumption, one of difficult problems in this area, is proposed combined with grate structure and rotation speed of grate motor.
在建立效率测算模型的过程中，结合炉排结构参数和炉排电机转速给出了一个计算燃料消耗量的方法，解决了燃料消耗量难以测量的问题。
Due to extremely short residence time of supersonic airflow, it is difficult to effectively mix and combust for the fuel and air in scramjet combustor.
高超声速气流在燃烧室的停留时间非常短，使得超燃冲压发动机燃烧室内燃料与气流的混合及其燃烧变得非常困难。
The program design of fuel gauge has been one difficult problem in the software development of the auto meter, and the indication error of fuel gauge is often complained by clients in the meantime.
燃油表的程序设计一直是汽车仪表软件开发的难题，同时燃油表的指示误差也是客户经常抱怨的问题。
Leading the race for such a long time was a great feeling but we had issues with the fuel consumption which made it really difficult to fight for position.
一度在赛道上领跑的感觉非常棒，但我们确实在燃料的消耗问上出现了一些问题，这使得我没有办法充分保住自己的位置。
With cold starting devices, such as inlet pre-heater, optional fuel heater and coolant heater, the unit has solved the difficult starting problem under low temperature and high altitude areas.
机组装有进气预热器，可选装燃油加热器和冷却液加热器等冷启动装置，解决机组在低温、高海拔地区的发动机起动难问题。
The reloading optimization problem of PWR with burnable absorber fuel is very difficult, and common optimization algorithms are inefficient and have bad global performance for it.
含可燃毒物的压水堆堆芯装料优化是燃料管理优化研究中的难点。
For the inner complexity of Direct Methanol Fuel cell (DMFC), mathematical modeling of DMFC is very difficult.
针对直接甲醇燃料电池(DMFC)系统过于复杂，难以数学建模。
It will be difficult for environmental tax and carbon tax to become an energy saving, emission reduction measure, like fuel tax, did people drive less?
环境税和碳税难以成为节能减排的手段，像征了燃油税，人们少开车了么？
Two difficult problems that domestic refinerys should regenerate their fuel oil products and increase the ratio of diesel oil output to gasoline one are reviewed. Some research and proposals are made.
针对国内炼油厂面临的燃油质量升级换代和提高柴汽比的两大难题展开综述，进行了探究并提出一些建议。
In order to meet this requirement, to adopt the fuel-supplying mode of a high-positioned fuel tank is an effective measure, but to keep the constant fuel level is difficult in operation.
有效的方法是采用高位燃油箱供油方式，但如何保持其油面恒定是实际操作中的一个难题。
In order to meet this requirement, to adopt the fuel-supplying mode of a high-positioned fuel tank is an effective measure, but to keep the constant fuel level is difficult in operation.
有效的方法是采用高位燃油箱供油方式，但如何保持其油面恒定是实际操作中的一个难题。
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