machine; machinery

strength / power / force

hard, tough, stiff / stubborn

器械: a device, an appliance, a mechanism / 機械: a machine, equipment, an apparatus / 器械: a utensil, a tool, an instrument / 器械: a tool for conducting a test or experiment or for measurement

against one's will

strong / strength / powerful / potent

(lengths of time) slightly more than

a male given name

strong, durable, powerful / strong, competent, good / high tolerance, resilient

strength