centre of gravity

• Conservation of movement of the centre of gravity
  重心运动的守恒
• Mopeds - measurement methods for location of centre of gravity
  机动脚踏两用车.重心位置的测量方法
• Agricultural tractors - test procedures - part 15 : centre of gravity
  农业拖拉机试验规程第15部分：质心
• Two - wheeled vehicles - measurement method for location of centre of gravity
  两轮机动车.重心位置的测量方法
• Method for determination of the centre of gravity of road vehicles with two axles
  双轴道路车辆重心测定方法
• Specification for earth - moving machinery - method for locating the centre of gravity
  土方机械规范.重心定位方法
• The aircraft was within both longitudinal and lateral centre of gravity limits
  飞机的纵向及横向重心均在限制范围之内。
• The helicopter was within both longitudinal and lateral centre of gravity limits
  直升机的纵向及横向重心均在限制范围之内。
• We can assume all the mass of the body to be concentrated at its centre of gravity
  我们可以假定物体的质量全部集中在重心上。
• Performance assessment of agricultural tractors - method for determination of centre of gravity
  农用拖拉机性能评定.第6部分:重心测定方法