地球上有如此多的沙子(只留下砂)。

There are so much sand on the earth (leaving only sand).

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海星砂那天逃课守在寝室里电脑前，在46块多的时候买进，买进后的两小时内，还涨到了48，当时那个乐啊。

Starfish sand in the bedroom that keep skipping classes of the computer, at 46 block much when buy, buy two hours after, still up to 48, when the joy ah.

youdao

在分析目前砂带磨削参数测试过程中所用方法的基础上，指出了多传感器融合的优点及必要性，并与单传感器的测试进行了比较。

Compared with single sensor, the virtue and necessity of multi-sensor integration technology are introduced based on the analysis of the way used to test abrasive belt grinding parameters.

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