Methane is often regarded as the second most important greenhouse gas after carbon dioxide.甲烷常被认为是仅次于二氧化碳的重要温室气体。Methane is said to be hydrophobic.甲烷被称为疏水的.The project is consisted of a modern hoggery, goose house and me...
And violence is carried out of the townships into the white living areas.而且暴力已蔓延至白人居住区.FRANCINE KAUFMAN: " We were in the townships and people were overweight . "我们去过很多城镇,许多人们都 超重 了.What are known as backward townships d...
These incidents suggest the peace in Northern Ireland is still brittle.这些事件表明北爱尔兰的和平仍然很脆弱。Word has been spreading fast of the incidents on the streets.有关街头骚乱的消息迅速传播开来。Incidents of this type cause irreparable damage to re...
他抓住挂在门内侧的大衣.He grabbed his overcoat which hung on the inside of the door.水星是在地球轨道内侧的一颗行星.Mercury and Venus are inferior planets.水星和金星是在地球轨道内侧的两颗行星.Mercury and venus are inferior planets....
METHODS: The target compound was prepared by the bromination and amination reaction.方法: 用溴代及胺化反应合成了四甲基吡嗪衍生物.The effects of triacetoneamine concentration on hydrogenation and amination were discussed.论述了三丙酮胺纯度对加氢和还原胺化反应的影...