He knew what he wanted to do from the age of 14.他14岁起就知道自己日后干什么了。At present children under 14 are not permitted in bars.目前，14岁以下儿童不允许进酒吧。The commission met 14 times between 1988 and 1991.1988至1991年间，该委员会举行了14次会议。...
Most larches have brittle branches and produce relatively few flowers on lower branches.大多数落叶松具有脆弱的枝条,并且下部枝条开花较少.How many golden larches are there in the arboretum?植物园里有几棵金钱松?...
超声波电机的输出特性与驱动频率呈非线性关系.The relations of ultrasonic motor output characteristics and drive frequency are nonlinear.定义了开关磁阻电机的电压矢量.It defines the voltage vector for Switched Reluctance Motor.阐述了变磁极性直流电机的极性换向控制.Discussed the...