An air - filled sac or structure that aids in the flotation of an aquatic organism 氣囊水生動植物器官中用來幫助飄浮用的充滿氣體的囊或結(jié)構(gòu)
The flexible air - filled chamber of a bagpipe , an accordion , or a similar wind instrument 風(fēng)箱風(fēng)笛、牛風(fēng)琴或類似的管樂器的內(nèi)有空氣的靈活的腔室
The motor shall be of the air - filled type and shall be cooled by an internal closed loop cooling system 電機(jī)應(yīng)該是風(fēng)冷式,應(yīng)該由內(nèi)置循環(huán)冷卻系統(tǒng)進(jìn)行冷卻。
An air - filled sac found in large numbers in the thalli of certain seaweeds ( e . g . bladderwrack ) 氣囊2在一些海草的植物體中大量的發(fā)現(xiàn)的充滿空氣的囊。例如墨角藻。