When two or more elements combine and form a compound, a chemical change takes place.当两种或两种以上的元素结合形成化合物时, 发生化学变化。Dinucleotide A compound of two nucleotides linked by their phosphate groups.二核苷酸:由磷酸基团连接的两个核苷酸组成的化合物.Magnes...
Police fired on them as they fled into the embassy compound.当他们逃进使馆大院时,警察向他们开了枪。The less stable compounds were converted into a compound called Delta-A THC.不太稳定的化合物被转换成了一种叫做Delta-ATHC的化合物。This sticky compound adheres wel...
半柔性路面是一种在大孔隙沥青混合料中填充水泥胶浆而形成的兼具沥青路面与水泥砼路面特点的复合路面.Semi - flexible pavement is generally described as an open - concrete mixture, which is filled with Portland cement grout....