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A differential relay is a protective device that is fed by current transformers located at two different series points in the electrical system.
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差动继电器作为保护装置，差动继电器由位于系统中两个不同位置的电流互感器提供反馈信息。 |
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A differentiated part of an organism, such as an eye, a wing, or a leaf, that performs a specific function.
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器官一个生物体中起着特定作用的独特部分，例如一只眼、一只翅膀或一片叶子 |
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A difficult career choice can be made easier by getting firsthand knowledge about particular occupations.
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面临不知如何选择职业的困境时，如果能对于特定职业获得第一手资讯，问题就简单多了。 |
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A difficult or embarrassing situation; a predicament.
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困境，窘境很困难的或发窘的局面；难题 |
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A difficult race but I managed to keep my concentration.
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比赛很艰难，但是我做到了专心致志以自己的节奏跑完比赛。 |
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A difficult situation can call forth a person's best qualities.
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困境能唤起一个人最好的品格。 |
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A difficult tale. I have sympathy for Withers, but I have my own problems to concern me.
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一个复杂的故事。我十分同情威瑟斯的遭遇，但是我还有自己的问题要去解决。 |
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A difficult, dexterous, or clever act designed to amuse.
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把戏，绝技一种娱乐性的、复杂的、技巧性的或灵活的行为 |
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A difficulty arose right here.
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困难就在这里。 |
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A difficulty has cropped up at work.
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工作中突然出现困难。 |
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A diffraction process is also used, but in this case ,the light output can be more finely turned to produce particular internal light patterns.
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虽然还要经过衍射过程，但是这样，出射光便可以被更好的转换为特殊形式的室内光。 |
