常见例句or an extension in both subwave three and five. 没有统计过，个人感觉第三浪经常发生延长。Keywords Subwave version;Acoustic emission;Unstable signal;On line location;Mined area; 子波变换;声发射;非稳态信号;在线定位;采空区;odd subwave 偶次波 返回 subwave