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预先测试为衡量学生是否已有足够的准备去进行更高一级的学习而举行的初步考试 | A preliminary test given to determine whether students are sufficiently prepared for a more advanced course of studies. | → |
指南针用于确定地理方向的设备,通常包括一个或多个水平安装或悬挂的磁针,可在枢轴上自由活动直到与地球磁场在一条线上 | A device used to determine geographic direction, usually consisting of a magnetic needle or needles horizontally mounted or suspended and free to pivot until aligned with the magnetic field of Earth. | → |
预赛,选拔赛确定比赛资格的预备竞赛或测试,如在体育运动中 | A preliminary competition or test to determine qualifications, as in a sport. | → |
农业生物学;土壤生物学关于植物养分和与土壤条件相关的生长的研究,尤其是对判定如何增加农作物产量方法的研究 | The study of plant nutrition and growth as related to soil condition, especially to determine ways to increase crop yield. | → |
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