headspace是什么意思？

Methods: Using heavy caliber capillary gas chromatography with headspace sampling.方法: 采用顶空进样技术,用大口径毛细管气相色谱法测定.Acid - volatile sulfide in river sediment sample was measured by reaction headspace.采用顶空色谱测定了河流底泥中的可酸挥发硫化物.Two...

A solid headspace capillary gas chromatography for the determination of residual organic solvents asarone was established.建立了固体顶空毛细管气相色谱法测定细辛脑中有机溶剂残留量.Methods: Using heavy caliber capillary gas chromatography with headsp...

headspace的音标：headspace的英式发音音标为：['hedspeɪs]headspace的美式发音音标为：['hedˌspeɪs]...

The lessons learned at the cost of blood helped to sober us.血的教训使我们的头脑清醒了.We must cherish experience acquired at the cost of blood.我们必须珍惜用鲜血换来的经验.He rescued the boy from drowning at the cost of his own life.他救这小孩免于淹死却牺牲了...

“招安”的近义词/同义词：招抚。...

vt.堵（船的）缝，泥…的缝，填塞，使不漏水...

A career or vengeance so direful that London was shocked.这种抱负心或报复心如此可怕,整个伦敦都惊呆了.What mind is there that does not shrink from its direful effects?哪一颗心不会在这令人毛骨悚然的三个字前抽搐痉挛?Gratiano mischance ; the cry is very direful.葛 莱西 安...

The markets of Kampala have been taken over with Obama - mania.坎帕拉(乌干达首都)的市场仿佛已经患上了“奥巴马狂热症”.Kampala is the capital and the largest city.坎培拉是其首都和最大的城市.That way, the researchers in Kampala can quickly search the database d...

“胆小的”的英语可以翻译为：yellow-bellied，cowardly，craven，pavid，recreant ...

opera house的音标：opera house的英式发音音标为：['ɔpərə haus]opera house的美式发音音标为：['ɑpərə haʊs]...

“血样的”的英语可以翻译为：[医] hematoid，hemoid，haematoid，haemoid ...

antacidin的音标：antacidin的英式发音音标为：[æntæ'saɪdɪn]antacidin的美式发音音标为：[æntæ'saɪdɪn]...

You know you are liable to be cross-examined mercilessly about the assault.你要清楚他们可能会就这起人身侵犯案毫不留情地盘问你。The sun beat down mercilessly.阳光无情地照射下来。We teased him mercilessly.我们肆无忌惮地拿他开心。...

爪哇镰菌素...

n.练习曲...

n.扇状尾，扇尾鸽...

“那里”的近义词/同义词：那边, 那处, 那儿, 哪里, 何处。...

chloralamide的音标：chloralamide的英式发音音标为：[klɔ:'ræləmaɪd]chloralamide的美式发音音标为：[klɔ'ræləmaɪd]...