Technical advances have cut down on the number of grains you have to study, so you get your results faster.

技术进步已经减少了你需要研究的谷物，你就可以更快地得到结果。

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The number of grains for which prices were collected varied with each province.

各省所收集的谷物价格数字各不相同。

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The major reason for the improved wheat yield was the increase in the number of grains per spike and the thousand-grain-weight.

改进小麦产量的主要因素是每穗粒数和千粒重的增加。

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IPv6 actually makes the issue of Internet security that much worse, because IP addresses are the true root of identity and we just added a staggering number of them more addresses than the number of grains of sand on the entire planet Earth.

FORBES: Authenticate or Die

The International Rice Research Institute (IRRI) said in a blog post that "even where the soil is contaminated with a lead spill, a number of studies have shown that rice plants do not take up a significant amount of lead and move it to the grains".

BBC: Study of lead levels in rice under scrutiny