many factories were set up
一个人走到这里 » A person come here 许多工厂被建立起来 » Many factories were set up 自双方签字盖章之日起有效实行。 » Since the two sides signed and sealed from the date of effective implementation.
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many factories were set up
许多工厂建立起来了
以上为机器翻译结果，长、整句建议使用 人工翻译 。