平均余年

词组短语

expectation of life

与平均余年相关的网络例句 [注：此内容来源于网络，仅供参考]

The protection and atrophy regeneration, reversion heteroplasia proliferation, intestinal metaplasia, the alleviation of symptoms of various clinical type by the"Si-Ni San"and"Xiao Xian Xiong Tang"prescription.

举出了慢性萎缩性胃炎男女发病率基本均等；发病年龄以41岁至70岁之间发病率较高；病程短者1个月，长者30余年，平均病程为5年；诱因则以情绪波动、气候变化与饮食不节为多见。

If ballasted or mechanically applied, EPDM can be reusable; they are also durable with an average lifespan of 20 plus years.

如果机械适用或碴，三元乙丙可重用；又耐用，平均寿命20余年。

But then China came to scorn trade and commerce, and per capita income stagnated for 600 years.

但中国的封建社会发展到一定阶段后，开始轻视贸易和商业，在那之后的600余年时间里，经济停滞，人们的平均收入再没有提高过。

Based on summarizing the definition, characters, application and development trend of GIS and DEM, the thought and method of calculating channel volumes and channel evolution analyses with GIS and DEM technique are brought forward. Withthis technique, silt-deposit amounts of several regions for over one hundred years are calculated, which separately are South Branch, South and North Channel, mouth bar area, offshore and Hangzhou Bay, etc.

在总结GIS和DEM的定义、特点、应用及发展趋势的基础上，提出应用GIS和DEM技术计算河槽冲淤量和进行河床演变分析的思路和方法，基于这一手段，首次将整个长江口和杭州湾作为研究对象，对其各组成区域在同一时间背景下的冲淤量进行了全面系统的分析，力求提供有关长江口及杭州湾百余年来平均冲淤状况全貌的认识。