The key to the extension of service life of steel structures lies in corrosion-proof.

延长钢结构的使用寿命，关键在于钢结构的防腐蚀。

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The University of Illinois Extension service, for example, suggests practicing on a chicken during the off-season.

伊利诺州大学的延伸服务，建议可以在淡季（非感恩节）用一只鸡来练习。

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In the case of the service identification extension, the area is populated by dynamic content around service identification.

在服务标志扩展情况中，该区域由关于服务标志的动态内容填充。

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Susan Trice from the University of Maryland Cooperative Extension Service says cabbage takes about sixty to ninety days to grow.

VOA: special.2009.03.03

The University of Illinois Extension service says you should harvest beans when the pods are firm and have reached their full length.

VOA: special.2009.03.24

And the Extension Service at North Dakota State University offers other advice: Do not save plastic bags of food even if boxes or containers inside the bags appear dry.

VOA: special.2010.07.19

April 12, 2006 - Surprising many, TiVo and DirecTV announce a three-year extension of their service contract for DirecTiVos, and agree not to work one another over on patent rights.

ENGADGET: TiVo Deathwatch

The extension of the service follows a three-month trial during which 220, 000 items were delivered to an alternative address and there were only two cases where a neighbour claimed not to have signed on behalf of a customer, Royal Mail said.

BBC: Royal Mail next-door delivery scheme given the go-ahead

Mr Cameron told party activists the scheme would be an extension of the National Citizen Service (NCS) he has already announced - a UK-based programme for 16-year-olds.

BBC: Orphans in Haiti