Teaching tends to be stable because of the characters and levels of the teaching practice rationality.

教学直接受到既有教学实践理性的特征和水平的限制而倾向于稳定守成。

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It is found that the acoustic velocity increases gradually, then decreases gradually after a peak and tends to be stable finally.

结果表明，波速沿径向逐渐增大，经历一个波峰后又逐渐降低，最后趋于稳定。

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Some people, by nature, are less upset by changes and surprises -- this can be observed in infancy and tends to be stable throughout one's lifetime.

有些人天生对改变和突然发生的变故情绪变化较小，这一点在年幼的时候就可以看出来，并且会在成长过程中渐渐稳定下来。

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Analysts also note the consumer-staples sector generally tends to be more supportive of debt loads because sales, even if uninspiring, are usually relatively stable.

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