Contractions

• The contractions and expansions set in motion the clockwork which marks the rate of consumption. 佚名. 神奇的知识之书.
• A galvanoscopic frog giving contractions with one cell through two water rheostats was then placed in circuit. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

亚伯整理