The bubbling muck had immense value - but it had to wait for the demands of the kerosene lamp and the internal combustion engine.
这个泡泡肥料有了很大的用途—不过它得等待人们对煤油灯和内燃机的需求。
The function of the cam follower directly influences the economic value and reliability of an internal combustion engine, so the cam follower is studied in this paper.
凸轮挺柱机构是内燃机的重要零件副之一，其性能的优劣直接影响到内燃机的经济性和可靠性。
The function of the cam follower directly influences the economic value and reliability of an internal combustion engine, so the cam follower is studied in this paper.
凸轮挺柱机构是内燃机的重要零件副之一，其性能的优劣直接影响到内燃机的经济性和可靠性。
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