1.
A little bird be bob Its head up and down
一只小鸟把头上下快速摆动著
2.
A little bird was bobbing its head up and down.
一只小鸟把头上下快速摆动着。
3.
When we make the rod shorter, the pendulum vibrates faster.
金属杆越短，摆摆动的速度越快；
4.
To shake with a slight, rapid, tremulous movement.
颤动以一种轻微快速颤抖的运动摆动
5.
A quick, jerky movement of the head or body.
摆动头或身体的快速、忽动忽停的运动
6.
The squirrel darted its head from side to side before scampering up the tree.
松鼠在爬上树之前左右快速地摆动头.
7.
To cause to move back and forth rapidly.
摆动使来回迅速移动
8.
My arms and legs pumped as I tried to climb a ladder of air, back to the board.
当我试着沿空中梯子爬回到木板时，我的胳膊和腿快速上下摆动着。
9.
cycloidal gear reducing motor
摆线齿轮减速电动机
10.
When we make it longer, it vibrates more slowly.
金属杆越长，摆摆动的速度越慢。
11.
swing his arms, stretch his neck and shake his head rapidly.
摆手、伸直脖子和快速摇头。
12.
Transfer alignment of strapdown inertial navigation systems on rolling bases
摇摆基座SINS快速精确传递对准方法
13.
Fast and precise initial alignment of strapdown inertial navigation system on rolling base
SINS在摇摆基座上的快速精确对准方法
14.
Moving or acting rapidly.
迅速的，快速的快速移动或行动的
15.
quick start lamp
快速[瞬时]起动灯
16.
To move back and forth or to and fro, especially rhythmically and rapidly.
摆动，振动迅速并有节奏的来回移动
17.
Its breeding plumage a blur, a common loon in Wyoming's Moose Lake flaps in rapid bursts to shake water from its wings.
在怀俄明州的莫斯湖，一只看似平淡无奇的潜鸟快速的摆动它的翅膀想摔干上面的水迹。
18.
Inverted pendulum system is multivariable, nonlinear, strong-coupling and instability naturally.
倒立摆系统是一个典型的多变量、线性、耦合和快速运动的自然不稳定系统。