Usage safety and simple operate is the advantage of our home elevator.

该电梯使用安全，操作简便。

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Phone line usage jumps up during disasters because of people trying to confirm the safety of themselves or others. This can obstruct emergency phone calls, such as 110, 119.

灾难后电话的使用量会因人们确认自己或他人的安全而激增，使得拨打紧急电话，如110和119变得困难，所以请避免拨打不必要的电话。

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This work could provide a scientific basis for safety production, safety usage and health standard revision of mercury and its compounds.

这项试验为汞及其化合物的安全生产、使用和卫生标准修订提供科学依据。

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Following long-standing precedents in food regulation, the FDA requires special labeling only when a new food raises questions of safety, nutrition, or proper usage.

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Of note, more than one third of the injured children in this study were less than 6 years of age-the age group for which the Consumer Product Safety Commission (CPSC) recommends against trampoline usage.

FORBES: Inflatable Bouncer-Related Injuries Sharply Increase in the U.S.