【简答题】二向等值拉伸应力状态( a )和三向等值拉伸应力状态( b )的最大剪应力的关系
【简答题】二向等值拉伸应力状态( a )和三向等值拉伸应力状态( b )的最大剪应力的关系
【判断题】曲柄摇杆机构中,当以摇杆为主运动件时具有急回特性。
【单选题】________ book named Harry Potter is ________ good friend of mine.
【判断题】曲柄摇杆机构中,当以曲柄为主运动件时具有急回特性。
【单选题】The toy named Friendly Fish is the number one best in Malaysia .
【简答题】Fahad Azad, an engineer in India, invented a robot named DuctBot.The toy-car sized DuctBot measured 23 centimeters in length, 19 centimeters in width and 9 centimeters in height and weighs just two ki...