Only those items of equipment that have protection ratings for the prevention of sparks or high temperatures may be operated in hazardous areas.

只有这些项目的设备，如对火星或高温的预防保护率可在危险区域经营。

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The axial flotation of chuck plays an important role in the protection of rod pipe threads and prevention of rod pipe stripping or cutterhead from dropping during the process of raise boring.

在天井钻进过程中，卡盘的轴向浮动对保护钻杆螺纹和防止钻杆脱扣、刀头坠落等方面具有重要作用。

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Some literature named this technology of protection data and prevention of the illegal data accessing as the computer security or the system security technology.

有些文献将这些保护数据、阻挡非法数据访问的技术统称为计算机安全或系统安全技术。

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But while free speech might be the starting point, the ECHR does allow for the restriction of those freedoms to safeguard "public safety, for the prevention of disorder or crime, for the protection of health or morals, protection of the reputation or rights of others".

BBC: Obscene stories or free speech?

While the Royal Society for the Prevention of Cruelty to Animals and the Cat Protection League re-house about 125, 000 stray or unwanted cats a year, the League guesses that there may be about 1.2m feral cats in Britain.

ECONOMIST: Cats and dogs fight it out for prime pet position