问题描述：
英语翻译
1、There are three chief effects of electric currents:the magnetic,heating and chemicai.
2 His failure to observe the safety regulations results in an accident to the machinery.
3 For many years,there has been serious unempioyment in this city.
4 The force of expansion makes it necessary to build a bridge in sections.
5 I stared biankly at the paper in front of me.
1、There are three chief effects of electric currents:the magnetic,heating and chemicai.
2 His failure to observe the safety regulations results in an accident to the machinery.
3 For many years,there has been serious unempioyment in this city.
4 The force of expansion makes it necessary to build a bridge in sections.
5 I stared biankly at the paper in front of me.
问题解答：
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