They are one of the most popular types of battery for portable electronics, with one of the best energy-to-weight ratios, no memory effect, and a slow loss of charge when not in use.

他们是在便携电子产品领域中最流行的一种电池类型，具有最好的能重比，没有记忆效应，并且在不使用的情况下，充电损失比较慢。

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The physical model of cantilever board in bench blasting is firstly presented and based on the hypothesis, a formula for calculating the charge weight in the MS delay bench blasting is also derived.

首先提出台阶岩体爆破的悬臂薄板物理模型，并在此基础上建立了台阶多排微差爆破的炸药量计算公式。

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So once the weight is made, Kayes will be keeping a watchful eye on his charge to ensure Hatton is in the ring 28 hours later "bursting full of energy" with the right food in his system.

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