我的朋友们，上一世纪的这一重大考验，本世纪正在展开的事件，都证明美利坚合众国对推动和平和捍卫自由起着决定性的作用。
My friends, the momentous trials of the last century, and the unfolding events of this century, attest to the decisive role of the United States in advancing peace and defending freedom.
他也相信它产生的信息，不仅对未来的火星航线有决定性的价值，也对人类心理学的泛化理解有重大作用。
He also believes that the information it will generate will be of crucial importance not just to any future Mars voyage, but to the broader understanding of human psychology.
内燃机缸内的气流运动和燃烧过程对发动机的整机性能有着重大的影响，是降低燃油消耗、减少排放和燃烧噪音的决定性因素。
With increasing restrictions on engine emissions, the need for reduced fuel consumption and low vibration, air motion and chemical reaction in the cylinder of diesel engine play an important role.
这是一个决定性的冒险事业，几乎没有成功的保证，而事实上梅尔维被迫让出一对航天器的飞行顶点重大和无计划的自旋。
It was a decidedly adventurous undertaking, hardly guaranteed of success, and indeed Melvill had to pull the spacecraft out of a significant and unplanned spin toward the apex of the flight.
在决定性的时刻，当我们需要做出一个重大的判断，但不得而知那一步是对的，只有时间和结果才能证明。
During critical moments where we need to make a significant decision but no sign to indicate either one are right only results and time will tell, that's when we rely on the above.
在我国股票市场上，股市政策是影响股市的运行方向、运行节奏、运行秩序的重大因素，乃至决定性因素。
In our country, the stock market policy becomes the factor that affects the stock market's running direction, running rhythm, even running order.
在我国股票市场上，股市政策是影响股市的运行方向、运行节奏、运行秩序的重大因素，乃至决定性因素。
In our country, the stock market policy becomes the factor that affects the stock market's running direction, running rhythm, even running order.
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