More reactive are the heavier isotopes of hydrogen, deuterium and tritium.更为活跃的是氢的较重同位素, 氘和氚.Deuterium is widely used in the study of reaction mechanisms and in spectroscopic studies.氘广泛地应用于反应机理的研究和光谱分析.The substituent i...
More reactive are the heavier isotopes of hydrogen, deuterium and tritium.更为活跃的是氢的较重同位素, 氘和氚.The substituent is deuterium.取代基是重氢.the nucleus of a deuterium atom氘原子的原子核Deuterium is widely used in the study of reaction mec...
My brother has console model with a 42 - inch flat square picture tube.我弟弟有一台42英寸的直角平面显象管的落地电视机.My brother has a console model with a 21 - inch picture tube.我弟弟有一台21英寸显像管的落地式电视机.I have a console model with a 25 - inch pi...
Distinguish important text items in lists with graphic icons.用图标来区分重要的文本项.Could he distinguish right from wrong?...他能分辨是非吗？Can you distinguish the twins apart?你能分辨这对双胞胎吗?to distinguish from the laity区别于俗人Some people find...
Table 1 – Accepted deiation for linear measurement except for chamfer edges.表1---除倒角外,所有线性尺寸的公差标准.Drag onto the page. Right - click to set chamfer angle.拖到绘图页上. 右击可设置切角角度.Gingival margins can be prepared with a deep cham...