opposed-engine

基本解释

An opposed-piston engine has cylinders in each of which two pistons travel in opposite directions.
对置式的发动机的每隔气缸中都有两个活塞沿相反方向运动。
The pumps are actuated by engine vibration. May also be used for 2-cycle engines. Not recommended for opposed multi-cylinder engines.
该泵安装到曲轴箱的前面或后面，该泵是由发动机振动驱动。也可使用2冲程发动机。不推荐使用多缸发动机。
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Owners of larger jet planes, for example, need only submit their flight plan 24 hours in advance — as opposed to weeks in advance for smaller craft like single-engine planes.
比如，拥有较大飞机的人，只需要提前24小时提交他们的飞行计划——而不像单引擎飞机之类的较小飞机的拥有者那样需要提前好几个星期。

EcoMotors and Achates are developing two-stroke, opposed piston diesel engines while Pinnacle is working on a four-stroke opposed piston gasoline engine.
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Other associations, such as those hard-coded into a search engine (as opposed to a static link), may be difficult to find without spending a considerable amount of time on a page.
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