重力

• The chief function of the muscles of the back when one is erect is to resist gravity .
  一个站立的人的肩肌的主要功能是抵抗重力。
• These changes correspond in a way to the variations of the earth's gravity with latitude .
  这些变化类似于地球重力随纬度的变化。
• Gravity meters and their operators were lowered to the water bottom in diving bells .
  重力仪及操作员们都在钟形潜水器内沉到水底。
• During impact this force is much greater than any other force, such as gravity .
  在碰撞过程中，这个力远远大于其它力（例如重力）。
• Gravity prospecting involves the measurement of variations in the gravitational field of the earth .
  重力勘探意味着测量地球重力场的变化。
• The actual equipotential surface of the earth that corresponds to sea level is called the geoid .
  相当海平面的地球实际等位面称为重力平面。
• The heavy damping makes it impractical to read gravity directly from the displacement of the beam .
  高阻尼不能使其直接从横臂的位移读出重力值。
• He took a giant stride forward in understanding mechanical principles and in understanding gravity .
  他在认识力学原理和重力方面，迈进了一大步。
• Each mass is subject to two forces, namely the tension of the string and the gravitational force .
  每一个物体受到两个力，即细绳的张力和重力作用。
• For calculating the force of gravity on a satellite, the radius of the earth is irrelevant .
  计算地球作用于卫星的重力时，地球的半径是无关紧要的。