本文根据气象灾害特征、致灾因子和天气现象类型，将我国的气象灾害划分为7大类20种。

In light of characteristics of climatic disasters, the causal factors and types of weather phenomena in China, the authors put climatic disasters into 7 categories and 20 types.

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这种电压过高或过低可能是一个相当普遍的现象，取决于与计算机公用同一电路的设备数量和类型。

Depending on the same circuit with the common computer the number and type of equipment, this may be a very common phenomenon.

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目前存在多个轮询解决方案以及各种规范，这种现象清楚地说明了人们迫切地需要这种类型的解决方案。

There are already several polling solutions popping up various specifications, so clearly there is a need for this type of solution.

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In '98, I forget which way, but one of the share classes 20% was at a 20% discount to the other and that persisted for several years, so you have economically identical things trading at different prices.

在98年，我不记得是为什么，一支这种类型的股票,比另一只股票便宜,而且这种现象持续了好几年的时间，因此你拥有经济意义上完全相同,但是却以不同价格进行交易的东西。

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