枢纽 | shū niǔ | hub (e.g. of traffic network) / hinge / pivot / fulcrum | |
支点 | zhī diǎn | fulcrum (for a lever) | |
枢轴 | shū zhóu | pivot / fulcrum | |
力心 | lì xīn | fulcrum / center of force | |
力臂 | lì bì | lever arm (i.e. perpendicular distance from the fulcrum to the line of force) | |
支承销 | zhī chéng xiāo | fulcrum pin |