1、She stood on the coarse sand and played with her son.
她和她的兒子在粗糙的沙子上玩。

2、The test target of "depositing coarse sand and discharging the fine" is basically achieved.
放淤試驗工程“淤粗排細”的目標基本得以實現(xiàn)。

3、Thus coarse sand and clay had larger capacity for pyrene sorption.
粗砂粒組和粘粒組對芘的吸附能力較大，細砂粒組和粉砂粒組相對較小。

coarse sand翻譯