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单词 Decade Box
释义

Decade Box

原声例句
CNN 10 学生英语 2019年1月合集

As we've seen over the past couple decades, box office hits aren't often considered Oscar contenders and blockbusters don't really need the exposure that a nomination brings.

正如我们在过去几十年中所看到的,票房成功并不经常被认为是奥斯卡的有力竞争者,大片并不真正需要提名带来的曝光度。

英语百科

Resistor

Axial-lead resistors on tape. The component is cut from the tape during assembly and the part is inserted into the board.
The hydraulic analogy compares electric current flowing through circuits to water flowing through pipes. When a pipe (left) is filled with hair (right), it takes a larger pressure to achieve the same flow of water. Pushing electric current through a large resistance is like pushing water through a pipe clogged with hair: It requires a larger push (voltage drop) to drive the same flow (electric current).[1]

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. Resistors may be used to reduce current flow, and, at the same time, may act to lower voltage levels within circuits. In electronic circuits, resistors are used to limit current flow, to adjust signal levels, bias active elements, and terminate transmission lines among other uses. High-power resistors, that can dissipate many watts of electrical power as heat, may be used as part of motor controls, in power distribution systems, or as test loads for generators. Fixed resistors have resistances that only change slightly with temperature, time or operating voltage. Variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force, or chemical activity.

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更新时间:2025/6/22 11:09:45