短語詞組短語longer propagation distance 傳播距離遠loran propagation distance 羅蘭傳播距離crack propagation distance 裂紋擴展距離smoke propagation distance 菸氣擴散距離distance propagation 遠距傳輸long -distance propagation simulation 遠距離傳輸模擬distance of propagation blast 殉爆距離 返回 propagation distance