Cyclopentanone ethylene ketal was synthesized with I _ 2 as catalyst.以单质碘为催化剂合成了环戊酮乙二缩酮.The blended chips containing 10 % ~65 % of n - Eicosane were fabricated with n - Eicosane, polyethylene ( PE ) and ethylene - propyl...
Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region.乙烯和反式二氯乙烯在红外光谱的这个区域都无活性.Plasma - polymerization of ethylene gives films of complex, uncertain structure.乙烯的等离子聚合得到复杂的, 无固定结构的薄膜.In...
轻微的失光或出现极轻微的腐蚀产物.Lose light or a very slight corrosion outcome slightly.严重变色到极微的失光.Change countenance off - chance to lose light seriously.我用过这个, 三个一起用时失光比较大, 而且镜头也不一定转到哪去,呵呵.To take a photograph needs camera lens, what&...
这种重要的碳化物向晶体内和晶体间沉淀.This important carbide precipitates both inter and intragranularly.Fe -Cr-C 耐磨堆焊合金中初生碳化物生长方向的控制.Orientation control of primary carbide in Fe - Cr - C hardfacing alloys.提出了避免碳化物带状偏析的有效措施.The effective m...
这两种手法实际运用起来哪个好一些？How do the two techniques compare in terms of application?导演在镜头运用上既富有美感又渲染了气氛，戏剧手法的运用也娴熟自如。The director employs sensuous, atmospheric camerawork and deft dramatic touches.物理学并非只是一门不能直接运用的纯科学。Physics isn&...