柯林斯词典plate tectonics 1. N-UNCOUNT Plate tectonics is the way that large pieces of the Earth's surface move slowly around. 板块构造(论)[技术] 返回 plate tectonics剑桥词典the study of how the surface of the earth is formed , how the separate pieces of it move , and the effects of this movement 板块构造学（研究地球表面是如何形成的、其不同部分如何移动以及这种移动会产生什么效应） 返回 plate tectonics