The effects and economic benefits of using PE tube filter as the secondary unit for brine filtering was introduced.

介绍了加装PE管过滤器作为二次过滤装置后的效果及经济效益。

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The company has gained the security certificate of national dangerous chemicals business unit standardization for the secondary unit, and also safety production license;

公司获得了国家危险化学品从业单位安全标准化二级企业证书；同时正在办理产品安全生产许可证；

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Yet, energy recovery can be achieved easily by utilizing the four-quadrant characteristic of the secondary unit together with high efficiency and good energy saving feature.

利用液压马达的四象限工作特性，能够有效地实现能量的回收与再利用，具有很高的效率和很好的节能效果。

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Additionally, the secondary unit is connected to a motorized touchscreen LCD and responds to your voice thanks to the included speech recognition software.

ENGADGET: blogger-avatar

The unit is designed to give children from the autism unit at Pilsley Primary School a secondary school option.

BBC: Autism centre to be built at new ?14.5m Tibshelf School

Moreover, the right kind of education should be provided, which is why the Science Education Unit provides primary, secondary and tertiary pedagogical materials to schools while meeting with policy-makers, students and teachers alike.

UNESCO: Social and Human Sciences