❶ 鐢电嚎镄勫钩鏂规暟鏄镐庝箞绠楃殑锛熸槸缁炲悎瀵间綋銆傛瘆濡0.2镄勯摐锛1.5骞虫柟镄勭数绾 锛屾湁48镙归摐銆傛庝箞绠楀嚭1.5镄勶纻
鐢电嚎瀵间綋骞虫柟鏁,鍏跺疄灏辨槸鎴闱㈣＄畻.=鍗曟浔瀵间綋鐩村缎*鍗曟浔瀵间綋鐩村缎*0.7854*𨱒℃暟.