权威例句
Robert HookeMonitoring the period of vibration of the balance of a clockwork with an anchor escapementAnimation of an anchore escapement used in a pendulum clockOrigin and evolution of the anchor clock escapementCLOCK AND WATCH ESCAPEMENT MECHANICSVerge and Foliot Clock Escapement: A Simple Dynamical SystemEscapementON THE “ESCAPEMENT”AND STAR-MAPPING IN THE XIN YI XIANG FA YAOThe pendulum clock: a venerable dynamical systemTwo-Stroke Oscillators