Analogy brains, good at thinking. Mao Zedong, "Learning and the current situation": "The switch on the machine, that is, thinking organ to good use." Wang Zhaowen "On the Xifeng" Chapter III: "I appreciate the Cuilv Ken brains ... ... Although Cuilv art The 'switch on the machine' makes a difference, but it also has its undeniable connection. "
Translated by Google
English Expression
n.: machining, get into gear, put into gear, throw into gear, set machinery in motion