外界环境对天平变动性的影响很大，愈精密的天平，对外界的环境要求愈严格，修理和使用都应特别注意。 一、震动的影响 震动有强有弱，但对天平示值变动性都有影响，愈精密的天平，防震要求愈严格，如果天平室临近马路、动力车间或天平室设在二楼以上等，都会因震动而使刀刃在 The impact of the external environment on the balance of great changes, the more precise balance, the more stringent environmental requirements on the outside world, repair and use should pay special attention. First, the impact of shock Strong and weak vibration, but the value of the scale changes are affected, the more precise balance, the more stringent requirements of the earthquake, if the balance near the road room, power plant or balance room located above the second floor and so on, Will make the blade in vibration