The growth of seedlings is very slow, annual height increment of the newborn seedlings is 8.5 cm. And the light has a drastic check on its growth.

幼苗生长缓慢。其一年生幼苗高度年生长量8.5厘米，光照严重抑制幼苗的生长。

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Site preparation quality in poor overflow land influences not only on survival rate of forest in the same year, but also on growth and annual increment after survival of forest.

瘠薄河滩地整地质量的优劣，不仅影响林木的当年成活，而且还影响林木成活后的生长发育和连年生长量。

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For the past decade or so, the decline of personal letter-writing has been masked by a huge growth of junk mail1, so annual falls in the total volume of letters have been a matter of increment.

在过去十几年的时间里，广告邮件数量激增，而其背后遮掩的，是个人书写信件不断减少这个事实。

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