When the Einstein logarithmic resistance formula is used to calculate the resistance of sidewall and bed flow respectively, the closure problem of equation group can be solved.
将分别对应于边壁和床面的爱因斯坦阻力公式应用阻力计算中，可以解决方程组不闭合的问题。
The sliding closure structure has simple structure and good antifatigue resistance.
本发明滑盖机构结构简单、极 耐疲劳。
It also has excellent alkali resistance, adhesion and closure performance.
同时还具有优良的耐碱性、附着力和封闭性能。
It also has excellent alkali resistance, adhesion and closure performance.
同时还具有优良的耐碱性、附着力和封闭性能。
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