Proposals for safe usage of perlite in air separation industry are also presented.

最后就空分行业安全使用珠光砂提出了建议。

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The utility model has the advantages of good preheating effectiveness, convenient and safe usage.

本实用新型具有预热效果好，使用方便、安全的优点。

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Cherish vehicles and keep them neat, execute orders punctually, ensure normal and safe usage of vehicles.

爱护车辆，保持车辆整洁，按时出车，确保车辆正常和安全使用；

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Dr O'Connell said the skills gap between young people and adults remained a problem in getting across the message of safe online usage.

BBC: Children need to know the risks of the web, say researchers

Silver is trading more on its industrial usage qualities and less on its safe-haven allure.

FORBES: METALS OUTLOOK: Weaker Trade Possible In Gold If Financial Markets Stabilize

Essentially a Mobile Device Management (MDM) app for parents, this would also let me create a whitelist of kid-safe apps, prevent or control any downloads and generally track their usage.

FORBES: Parents Need Mobile Device Management, Too