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汉语拼音：sān běi

1.三次败逃。

• This year is construction of system of 3 north shelter - forest 20 years.

  今年是三北防护林体系建设20周年.

• The Three North Shelterbelt is a forestation undertaking.

  三北防护林带是一项造林事业.

• Effect of afforestation of Tenth Five of Forth phase of the Shelterbelt in Liaoning Prov.

  与辽宁省三北防护林四期工程“十五”营造林成效分析>>相似的文献.

• This paper states the problems and development countermeasure in performing Sanbei shelter forest system construction.

  论述了实施三北防护林体系工程建设以来存在的问题及今后发展的对策.

• Key Shelterbelt Construction Program in North , Northeast and Northwest China and the Lower - Middlethe Yangtze River.

  “三北”和长江 中下游 地区等重点防护林建设工程.

• This year is project of system of 3 north shelter - forest carries out 20 years.

  今年是三北防护林体系工程实施20周年.

• The self - propelled water - saving irrigation technology offers the potent guarantee for the food production in arid region.

  行走式 节水 灌溉技术的出现,为我国三北干旱地区的粮食生产提供了有力保障.