air-coil

基本解释

One immediate benifit of having "air coils" is obviously the complete lack of cogging, which, if used in a windmill should result in a machine that starts very easily.
一個直接的好処有“空氣彈簧”顯然是完全沒有脈動，而如果使用風車應導致機器，開始變得非常容易。
The air in the garden was warm and fragrant.
花園裡的空氣一片溫馨。
The archers sent their shafts through the air.
弓箭手曏空中射出利箭。
The lack of air in the room make everyone sniffle.
屋子裡空氣缺乏，使得每個人都頻頻吸氣。
If a coil has no metal core it has an air core.
如果線圈沒有金屬芯子，它就有一個空氣芯子。