The balance was carbonaceous fraction , the nonflammable inorganic fraction was negligible.其余为不挥发的可燃物碳粒, 不可燃的无机物极少.Nitrogen trifluoride ( NF 3 ) is a toxic, colorless, odorless, nonflammable, oxidizing compressed gas.三氟化...
The balance was carbonaceous fraction , the nonflammable inorganic fraction was negligible.其余为不挥发的可燃物碳粒, 不可燃的无机物极少.a nonflammable liquid一种不易燃的液体Gaseous helium is inert, colorless, odorless, non corrosive, and nonflammabl...
His face was expressionless, but Alex felt the unspoken criticism.他面无表情，但亚历克斯能感觉到他未明言的批评之意。That expressionless face had seemed deep and mysterious.那张毫无表情的脸看上去深沉而又神秘。She sat expressionless, carefully taking notes.她坐在那儿面无表...