liquid nitrogen plan装置: installation; device; appara ...定氮装置: nitrogen apparatus脱氮装置: nitrogen rejection facility; nrf; nru制氮装置: nitrogen-making device变压吸附制氮装置: psa nitrogen generation unit下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:液氮装置，即可在微信中查询翻译
