速带 meaning in Chinese

speed belt

It is found that the seismic low-velocity zone lies wholly within the plates .
现在发现地震底速带全部分布在板块之中。
And many others . you also have available many material , comparison , and decision tables , including a system for the administration of resolved tasks . description in pdf format
包含很多常见设计或者校核的计算，例如驱动轮，锥轮，调速带， v带，链，轴承，弹簧，柱，梁，轴，螺栓，联轴器，公差，公差分析，技术公式等等。