求助helium gas recovery machine‏ 此机器的准确中文名.产品在下面

求助helium gas recovery machine‏ 此机器的准确中文名.产品在下面 helium是什么意思? helium是什么意思 gas gas 请问 HIGH PURITY HELIUM 英语翻译The early universe contained only the lightest elements,hydrogen and helium.Heavier elements,such as carbon,form only in nuclear reactions in stars and are dispersed when the stars explode.A recently discovered gas cloud contained carbon recover翻译 undelete recover. “recover”是什么意思 recover是什么意思 Helium 氦的做用是什么, 求助英语短语翻译“向下吸气”,可以翻译成downward suction gas吗,希望大家提供好的建议, 英语翻译When the heat source is the exhaust gas of an IC engine,a further possibility is to use a wet steamsystem to recover the exhaust gas heat that condenses at 100 ◦C and supplies the rejected heat toa lower temperature ORC system that recover和 recover from的区别 用“recover”造句 急 recover v.恢复 oil gas gas是什么意思?