IRobot has been building larger robotic rovers that are used for bomb disposal and other hazardous tasks, but the challenge was putting everything into a five-pound package that doesn't fall apart.

iRobot公司曾经研制出供处置炸弹和和其它危险品的较大型的机器人，而现在面临的挑战是，要把所有东西塞到一个5磅重的的盒子中而不会散包。

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Besides the usual college-level courses in science, mathematics, and communications, the program provides a knowledge of hazardous materials, building construction, and firefighter safety.

除了平常大学水平的课程如科学，数学和交流，课程还提供有害材料的知识，建筑施工和消防员安全。

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Reduced port Ball valves are not recommended in building services piping, but rather for process piping in hazardous material transfer.

缩径流道球阀不推荐在建筑物管道系统中使用，但是可用于有害物质传输的处理管道。

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China stalled its production of dozens of new nuclear power stations, but has since returned to building out the clean-burning, but potentially hazardous, energy source.

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In addition to providing a nationwide, interoperable network for Public Safety for the first time, it would provide the ability to view real-time video, check license plates in real time, and download building layouts so fire fighters could see how the building is laid out and if there are any hazardous materials inside.

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Investigators in hazardous materials suits spent most of Saturday executing a search warrant at a three-story apartment building in downtown Spokane.

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