air jacket

美 [er ˈdʒækɪt]英 [eə(r) ˈdʒækɪt]

air jacket

noun

数据来源：WordNet

1

Heating elements in all three walls , bottom , and door create a warm air jacket around the inner chamber to guarantee superior temperature uniformity with no hot spots .

通用培养箱采用三面内壁、箱底、门构造的暖气气套系统确保箱体内部温度均匀。
2

Therefore , the tow feeding system was modified : enlarging air chamber in air jacket of the jet ;

为此，对其供丝系统进行了技术改进：增大了喷嘴内外套间的气腔；