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1·He played a key role in the turn point of history.

在历史转折时期的转折点上，他起到了至关重要的作用。

2·Editor: What is do you think the turn point of your life?

艺术经纬：有没有什么事情是你觉得是对您人生有转折意义的？

3·LT training is the most efficient way to raise your lactate turn point.

乳酸阈训练，是提高乳酸阈的最有效途径。

4·The result showed that there is a turn point on the ultrasonic attenuation curve.

试验结果表明，豆乳在凝固超声衰减曲线上有一明显转折点即凝固初始点。

5·So if LT training is the best way to improve your lactate turn point, why is tempo training so important?

既然乳酸阈训练是改善乳酸阈的最佳途径，为什么还说节奏训练如此重要？

6·I think that the confusion about proper tempo pace is caused by a misunderstanding between the terms tempo training and lactate turn point (LT) training.

我想，把正确的节奏配速搞混淆的原因，是对节奏训练和乳酸阈训练这两个概念的误解引起的。

7·To solve the ZK3 type turn point machine mechanical jam problem, ZK4 type point machine adopts magnetic lock turn instead of the ZK3 type valve pressure before valves.

为解决ZK 3型转辙机的机械卡阻问题，ZK4型转辙机采用电磁锁闭阀代替了ZK3型的气压锁闭阀。

8·Reflections from Windows and eyeglasses produce superimposed views, and complex optical systems, such as camera lenses, can turn point sources of light into apparently saucer-shaped phenomena.

窗户和眼镜片的反光会造成重叠的影像，而例如相机镜头这样精密的光学系统会将点状光源扩散为看似碟形的现象。

9·I was able to turn the corner at an important point in my studies, going from nearly failing math to passing it.

我在学习上实现了重要的转折点，从数学几乎不及格到合格。

10·The liquid is maintained above its melting point until steam is required, at which point the liquid is allowed to turn back into a solid, releasing its stored energy.

不需要蒸汽时，液体保持在熔点以上，需要蒸汽时液体才能变成固体，释放其储存的能量。