The deleterious ingredients in gas emission of sculpturing organic glass were studied,using gas chromatography-mass spectrometry coupled with 3-step preconcentrator.
研究3
预浓缩气相色谱-质谱法检
有机玻璃在雕刻过程中排
有害气体
组成。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
Then over the bald, featureless, fire-blackened mountains, glaciers began to crawl, covering them from the summits to the sea with a mantle of ice; and then with infinite deliberation the work went on of sculpturing the range anew.
然后,在光秃秃、
特色
、被火烧黑
山脉上,冰川开始爬行,从山顶到大海覆盖着一层冰。然后经过
限深思熟虑,重新雕刻该系列
工作继续进行。