将造波水槽内二维浮体牵引弹簧回复液压缸的受力系统简化为弹簧—质量—阻尼器系统，建立数学模型，并根据牛顿第二定律得到运动方程式。
The model of a kind of wave energy device moored on seabed is simplified into a spring-mass-damping system, and then its motion equation is built according to Newton's second law.
在分析了外设动力式采煤机锚链牵引特性的基础上，将其动力学模型简化为具有质量的弹簧—质量系统。
On the basis of analyzing traction property of anchor chain of the shearer operated by outside power, the kinetic model is simplified as spring_mass system with mass.
为了在运行的时候平稳起见，增设了弹簧缓冲装置，当起动或停止的时候，均能保持稳定，在车的牵引装置上装有缓冲弹簧。
In order to smooth at run time, add the spring buffer device, when starting or stopping, can remain stable, in the car's traction device is equipped with buffer spring.
诸暨市金富旺弹簧厂位于中国浙江， 创造于1998年，是一家专业生产牵引车、半挂车（集装箱车）制动配件厂家。
Zhuji JinFuWang speing factory is located in Zhejiang province, China. It was founded in 1998 and is in specialized to produce the tractor and Semi-trailer.
牵引式气弹簧中也有相应的自由型、自锁型等。
Traction gas spring also has a corresponding free-type, self-locking type.
实验：同样的重量，但不同的根据地一个弹簧秤同文面拉项目-牵引力将是相同的！
Experiment: Pull items of the same weight but different base area with a spring scale over an identic surface - the tractive force will be the same!
实验：同样的重量，但不同的根据地一个弹簧秤同文面拉项目-牵引力将是相同的！
Experiment: Pull items of the same weight but different base area with a spring scale over an identic surface - the tractive force will be the same!
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