The winter solstice, theoretically should be the dead of a year, but it is usually not that.

理论上讲，冬至应是全年最冷的时刻，但通常并不是这样。

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Huaizhi Kang, the first author of the paper reporting the findings said, "It is easy to assemble, has fewer parts and theoretically should be more efficient."

发表这项研究报告的Huaizhi Kang称：“这种马达易于装配，而且工作效率方面理论上讲也更高。”

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Theoretically at least we should be able to copy these mechanisms found in nature, for all biological organisms are in part actually electrical systems.

至少在理论上我们应该能够模仿在自然界发现的这些机制，因为在所有生物组织中有一部分实际上是电系统。

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Mill made the point that if governments are charged with guaranteeing a certain living wage, then theoretically they also should be able to control how many people are born.

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Maglev trains use magnets to provide a frictionless environment, so theoretically, it should be possible to get one of them to the roughly 20, 000 mph required to launch an object into orbit.

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And, theoretically, the SA should be calculated once at the beginning of the year.

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