aircraft oxygen system aviation oxygen supply system
Related Translations:
供: 供Ⅰ名词1.(供品) offerings 短语和例子上供 offer up a sacrifice2.(口供; 供词) confession; deposition 短语和例子逼供 extort a confession; 诱供 elicit confessionⅡ动词1.(供奉) lay (offerings)2.(受审者陈述案情) confess; own up 短语和
