生物防治重点在拮抗菌的筛选上.The biological control was focused on the selection of antagonism.车前草含有一种叫做尿囊 素 的化学物质,是消炎抗菌的.Plantain contains a chemical ( called allantoin ) that is anti - inflammatory and antimicrobial.有机抹布和洗碗布正在被最广泛人使...
Both clay and sandstone are unstable rock formations.黏土和砂岩都是不牢固的岩石构造。An aquifer is a water - bearing rock stratum such as sandstone and chalk.地下蓄水层是一些有水的岩石层,如沙岩和白垩岩.Houses in the area are built of sandstone.这个地区的房屋都是用砂岩建...