英语语法分析

Isotopic analysis of shells allowed geologists to measure another glacial effect.

对贝壳的同位素分析使得地质学家可以测量另一种冰川效应。

In all these diverse regions, Agassiz saw signs of glacial erosion and sedimentation.

在这些不同的地区，Agassiz 都能发现冰川侵蚀和沉降的痕迹。

The glacial system is governed by two basic climatic variables: precipitation and temperature.

冰川系统由两个基本的气候变量控制：降水和温度。