“positive draft”的概念、定义、翻译、参考文献-科学参考

单词	positive draft
释义	positive draft [`päz·ǝd·iv `draft] ^{MECHANICAL ENGINEERING} Pressure in the furnace or gas passages of a steam-generating unit which is greater than atmospheric pressure.
随便看	red brass red charcoal red clay red cobalt red copper ore Reddish-Brown Lateritic soil Reddish-Brown soil red dwarf star red earth redefine redeposition red giant star red giant tip red glass red gum red-hardness red hematite redia redifferentiation redingtonite red iron ore redistribution red lake C pigment red lead red lead ore

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。