1) Hydrogen is much lighter than air.
氢比空气轻得多。
4) You are younger than I by much.
你比我年轻得多。
5) Hydrogen-air ratio
氢-空气燃烧比
补充资料:沸腾床燃烧(见流化床燃烧)
沸腾床燃烧(见流化床燃烧)
boiling-bed combustion:see fluidized-bed combustion
沸腾床燃烧(boiling一bed eombustion)见流化床燃烧。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条