常见例句or an extension in both subwave three and five. 沒有統計過，個人感覺第三浪經常發生延長。Keywords Subwave version;Acoustic emission;Unstable signal;On line location;Mined area; 子波變換;聲發射;非穩態信號;在線定位;採空區;odd subwave 偶次波 返回 subwave