The heptanal butyl mercaptan was synthesized with heptanal, sodium thiosulfate and 1 bromobutane as raw materials.以正庚醛 、 硫代硫酸钠和溴代正丁烷为原料,合成了正庚醛正丁硫醇缩醛.Keep the rough edge of the fabric aligned with the raw edge of the pipi...
There was some wrangling between creditors about who was to blame.债主们就谁该承担责任争论了好一阵。Madonna backed out of the project after much wrangling.多番争吵之后,麦当娜退出了这个项目。A group of MPs is still wrangling with the government over the t...