AIM: To evaluate the clinical effect of balancedforce technique in preparation of curved root canals.
目的：评价用平衡力法预备弯曲根管的临床疗效。
2
In order to applying balancedforce to aeroplane, there are paired blocking carriages set symmetrically on the landing stage.
拦降架上还设计有可移动的缓冲垫。为了使飞机能够平衡受力，拦降架在起降台上成对而且对称地设置。
3
The sequent wire-pulling is used in electric powered rig as it has smooth lifting system and cross wire-pulling is used in mechanical rig as balancedforce relief impact force by compressed ai.