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...
Nocturnal creatures, the northern hairy - nosed wombat is rarely seen by humans.北毛鼻袋熊是夜行性动物, 人类很少能看到它们.The wombat and kangaroo are both marsupials in Australia.袋熊、袋鼠都是澳大利亚的有袋类动物.A wombat stops in front a ranger's ve...