sounding machine 测深器 ; 测深仪 ; 机械测深仪

deep sounding machine 测深机 ; 深海测深仪 ; 深沟测深机

echo sounding machine 回声测深机 ; 回声测深仪 ; 回音测深机

electric sounding machine 电测水深计

sounding machine feeler 机械测深用触钩 ; 械测深用触钩

Langevin echo sounding machine 兰格文回声测深仪

hand sounding machine 手操测深仪

sounding machine lead 机械测深用水砣

sounding machine check 机械测深用触钩