1. Acid rain does harm to vegetation and wildlife, etches car finishes, and corrodes buildings and Bridges. 酸雨有害于植物的生长和野生动物，蚀刻车子的光泽，以及腐蚀建筑物和桥梁。
2. Another copolyester B-ET was treated by permanganic etches, also demonstrating the fibrillar banded texture. 特别是非平面构象、B-ET用高锰酸钾刻蚀也观察到微纤的条带织构。
3. Sometimes the cycle of destruction starts with illegal logging , which etches the first trails into the forest . 有时候，这种森林的毁灭开始于非法伐木，伐木者腐蚀开了一条进入雨林的小路。
4. Then the wafer is sent through a chemical bath that etches trenches into the exposed substrate, while leaving the areas covered by the photoresist untouched. 接着，硅晶片会被送入一个化学浴室，在暴露在外的硅衬底上蚀刻沟槽，同时光刻胶覆盖的区域不会受到任何影响。
5. Etches-Johnson mentioned the Vook as an experiment in mixing text and video, though also urged caution that embedded multimedia can raise accessibility issues. Etches - Johnson提到了the Vook是混合文本和视频的一个实验，尽管她也让人们注意，多媒体的嵌合可能会引起可获取性的问题。
