Elevator systems—the base, rails, and machine room—can be installed at the factory, eliminating the risk of injury.

电梯系统——包括底座、轨道和机房——可以被安装在工厂里，把受伤的风险降到最小。

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All these things have to be installed at home again.

所有这些东西都必须在家里重新安装。

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Sprinkler systems must be installed if a company employs more than 25 people.

如果公司雇员超过25人，就要必须安装自动喷水灭火系统。

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the honesty, all these things have to be installed at home again

老实说，这些都必须根植于家庭。

重要的是家庭教育 - SpeakingMax英语口语达人

This system can be installed relatively easily, and added on to as your collection grows.

FORBES: 8 Posh Wine Cellars

Francis will be installed officially in an inauguration Mass on Tuesday 19 March, the Vatican added.

BBC: Francis celebrates Sistine Chapel Mass with cardinals

Locked gates may be installed across alleys in Nottinghamshire in a bid to curb anti-social behaviour.

BBC: Nottinghamshire alley gating scheme may be expanded