major study

Introduction about concepts of tree , dendrology, and major study objectives relative to the science.

介绍树木学、树木的概念, 树木学研究的对象.

The repeated testing of young children is seriously undermining their education, a major study reports.

对小孩子重复的测试严重危害他们的教育质量, 一项重要研究表明.

Children as young as ten are becoming dependent on social media for their sense of self-worth, a major study warned ．

一项重大研究警告,10岁的孩子会因自我价值感越来越依赖社交媒体。

This papers major study is the collision safety CAE analysis of steering column on EPS.

本文主要研究的是昌河北斗星汽车所使用的电动转向器的转向柱的碰撞性能安全性问题.

It is the first major study of the so-called farmland grab trend, in which rich countries such as Saudi Arabia or South Korea invest in overseas land to boost their food security.

这是对所谓争夺农田（farmland grab）趋势的第一次重大研究。争夺农田指的是沙特阿拉伯和韩国等富国投资海外土地来提高自己粮食安全的趋势。