带两个或更多时钟域的系统是测试过程变复杂.Systems with two or more clock domains complicate the testing process.围岩蚀变复杂, 矿体与围岩界线明显.The wall - rock alteration is complex, and the line between orebody and wall - rock is obvious....

“变复杂”的英语可以翻译为：complicate ...