It can be found on apple trees, lindens, maples and poplars.人们可以从苹果树 、 菩提树 、 枫树和白杨树上发现它们.They tapped the sugar maples when the sap began to flow.当糖枫树的树液开始向外流淌时,他们便切割这些枫树皮.There are many maples in the park.公园里有好多枫树.The wi...
Audio signals can be transmitted along cables without distortion.声音信号可以通过电缆传送而不失真。8,000 homes were plunged into darkness as electricity cables crashed down.由于电缆损毁，8,000户家庭顿时落入一片黑暗之中。The cables are all bright yellow to pr...
OBJECTIVE : To optimize the extraction process of amygdalin in apricot kernel.目的: 研究苦杏仁中有效成分苦杏仁苷的最佳提取条件.Amygdalin is a cyanogenetic glucoside.苦杏苷是一种生氰葡糖苷.High purity amygdalin apricot kernel by the process of enzyme dest...
The studies and recent advances in chemical activator of electrode in organic electrosynthesis are briefly surveyed.电极活化剂在提高有机电合成电流效率、收率及改进电极活性等方面发挥着重要的作用....
These can range from lighting dimmers and climate control systems to security and audiovisual appliances.这些设备包括从调光器、气候控制器到安全装置和音像设备.Would you please tell me how much this audiovisual disk is?请问这种声像带多少钱一盘?Some libraries c...