The trap meant that higher populations merely brought lower living standards (until 1760, the best time to have been a British labourer was after the Black Death).
马氏陷阱意味着高人口仅仅带来的是低生活水平(直至1760年，在英国做农民的最佳时机是在黑死病事件发生之后)。
The accumulated oil and gas in the trap came from the Lower Tertiary hydrocarbon source rock 2000~5000 meters below.
渤海油区上第三系为河流相沉积，不能生油，其圈闭中聚集的油气来自2000?。
The higher the olefin trap temperature, the lower the ability of adsorbing olefins.
烯烃的穿透性随碳数的降低和烯烃阱温度的升高而增加。
The bellows inside the trap is filled with a mixture that is set to boil at a temperature slightly lower than the steam.
疏水阀内的膜盒充满了混合物，其沸点比蒸汽稍低一些。
The test results show that the precipitator maintains good performances, but the trap efficiency under high temperature conditions is lower than that under low temperature conditions.
试验结果表明，该静电旋风捕集器能在较高温度下保持良好的性能，但高温下静电旋风捕集器的捕集效率要低于低温下的效率。
The solution of problems such as water hammer, hard to dispose the noncondensables, air lock and selection of steam trap were discussed to save energy, protect environment and lower the cost.
指出蒸气凝结水回收的重要性的同时对炼油厂蒸气凝结水回收系统中存在的诸如水击、非凝结性气体不能排除、气阻及疏水阀的选型安装等问题的解决办法进行了探讨。
And global warming may drive this trend, he added. As greenhouse gases trap heat in the lower levels of the atmosphere, the higher levels tend to cool, he said.
北极的寒冬将越来越冷，这种长期趋势还会持续下去，他认为，由于温室气体在大气层的较低部位阻挡热量，在较高部位阻挡寒冷，全球变暖将加速这一趋势。
The main acting unit of bellows trap is metal bellows, which is filled with a type of liquid with gasification temperature lower than water's saturation temperature.
美国进口膜盒式蒸汽疏水阀的主要动作元件是金属膜盒，内充一种气化温度比水的饱和温度低的液体。
The main acting unit of bellows trap is metal bellows, which is filled with a type of liquid with gasification temperature lower than water's saturation temperature.
美国进口膜盒式蒸汽疏水阀的主要动作元件是金属膜盒，内充一种气化温度比水的饱和温度低的液体。
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