The spate of storms and hurricanes in recent years could be a statistical quirk.从统计数字上看，近些年来暴风雨和飓风的频发非同寻常。Most hurricanes occur before leaf drop and during or following heavy rains.大多数飓风出现在落叶以前,暴雨之时或暴雨之后.Hurricanes never...
Adamantane and bicyclo ( 222 ) octane are predominantly Chlorinated at the bridge heads by this procedure.金刚烷和二环〔222〕辛烷主要是按照这个程序在桥头氯化.Using tendo - tetrahydrodicyclopentadiene as raw material and AlCl _ 3 - trace water s...
疟疾突然又在全世界流行起来。Malaria is bursting out again all over the world.盼望有一天有人会研制出一种能有效预防疟疾的疫苗。Roll on the day someone develops an effective vaccine against malaria.他们已经在努力消灭疟疾、破伤风等疾病。They are already battling to eradicate illne...