如果这样的事情在一个比较大的尺度上发生(就像1930年代那样)，波纹效应就会给整个的经济体带来毁灭性的影响。
If this happens on a large scale, as it did in the 1930s, the ripple effect for the economy as a whole can be devastating.
在20世纪60年代初，物理学家们使用半导体工业中使用的工具来从头开始创建新材料，在原子尺度上一层层地建立它们。
Beginning in the 1960s, physicists were using tools adapted from the semiconductor industry to create new materials from scratch, building them up layer-by-layer at the atomic scale.
树木年代学丰富的内容和知识体系，成熟的研究方法，为区域尺度上研究水文变化提供了精确的方法。
A rich content and system of knowledge, mature research methods in dendrohydrology provide accurate methods for studying long-term hydrologic variability at regional scale.
应用推荐