In order to study the relationship between yield, maize ear treats and organ matter, N-OH, available P and K, we selected field block with different soil nutrition in Mei county, Shaanxi province.

在陕西眉县选择农田土壤养分含量不同的地块，研究不同含量的有机质，碱解氮、速效磷、速效钾与玉米果穗穗部性状及产量的关系。

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One detection design block diagram and algorithms for low S/N DS/SS signal are presented in this paper.

本文对低信噪比直接序列扩频（DS／SS）信号的检测提出了设计方案和算法。

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Skips n blocks (using the specified output block size) form beginning of output file before copying.

拷贝文件时，指定输入文件的开始记录号。

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So it feels a little backward mentally perhaps, 1 but this is saying, "do this block of code as long as n is less than 1."

所以它感觉可能有点迟缓，但是它指明，“只要n小于,执行这段代码“

哈佛公开课 - 计算机科学课程节选

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