Water quality is the key to guarantee quality of grain and soil.

在灌溉中水质是保证粮食和土地质量的非常关键的问题。

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We guarantee quality products which can stand fierce competition.

我们保证提供能经得起激烈竞争的高质量产品。 。

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Technical approval of medical equipment is first step to guarantee quality of medical equipment.

仪器设备的验收是保证医院医疗仪器设备质量的第一步。

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We believed that we could finally guarantee quality, affordable care for every American.

WHITEHOUSE: President Obama on Health Reform at Families USA

The fact is, Mr Fontes says, that there is still no way to guarantee quality of service in the unlicensed bands.

ECONOMIST: Spectrum policy

The state plays an essential role as defender of this principle, setting standards and norms that guarantee quality and equality of opportunity.

UNESCO: MEDIA SERVICES