是否记得《封闭的循环》（The Closing Circle）一书？书中说的温室效应、阿拉大恐慌（Alar Panic）、伊利湖（Erie）的消失、即将到来的冰河时期（ice age）是否都记得呢？
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The harmonic screw type valve is driven by the double wave harmonic screw. It can transform circle movement to line movement for the closing and opening of the valve.
谐波螺旋式阀门采用双波谐波螺旋传动，实现由圆周运动向直线运动的转化，实现阀门的启闭。
Quantum Reality, Relativistic Causality, and Closing the Epistemic Circle: Essays in Honour of Abner Shimony ( The Western Ontario Series in Philosophy of Science Vol. 73 )
量子现实，相对论的因果关系，关闭认知圈：纪念押尼珥希莫尼文集。
The math model on out-moving jaw crusher mechanism of changing length link with high-joint is established by using closing-vector-circle method.
采用封闭矢量环法推导建立含有高副的变长连杆的外动颚式破碎机构的数学模型。
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