0 a device consisting of a weight on a stick or thread that moves from one side to the other, especially one that forms a part of some types of clocks -- 摆，摆锤；（尤指）钟摆
The pendulum in the grandfather clock swung back and forth. 落地钟的钟摆来回摆动。
The spaceship's jets were fired periodically to dampen a side-to-side pendulum motion that had developed. 宇宙飞船的喷射装置周期性地喷射，以减缓飞船出现的左右摇摆现象。
As so often in education, the pendulum has swung back to the other extreme and testing is popular again. 人们的观点又回到了另一个极端，考试又流行起来了，这种摇摆不定的现象在教育领域经常出现。
A linear double pendulum model for the analysis of the symmetry approach used in the frontal plane algorithm.
However, the upper body is then just an inverted pendulum jointed around the hip.
Here 0 is the damping, 0 is the characteristic frequency of the pendulum !
As the driver swings, it moves the suspension, which in turn moves the other pendulums.
In this case, the model of the skier can be represented as a double inverted pendulum.
Builders report that construction of ceiling-high pendulums is possible.
On each side of the bridge, there are pendulums with crates.
Displacing the pendulums from pointing straight down requires positive energy, which indicates that the squared mass of those particles is positive.
