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unconstant adj.= inconstant.

unconstitutional

According to the principle of mutual transformation between potential energy and kinetic energy , the vertically falling law of power law fluid by the action of unconstant static pressure and the relation between rheological parameter and time were studied , thus providing a theoretical basis for calculating the rheological parameters of fluid in funnel viscometer 根據位能與動能的變化關系,作者研究了在非恒定靜壓作用下冪律流體垂直下落的規律及流變參數與時間的關系,從而為計算漏斗粘度計中流體的流變參數提供了理論依據。