已知管道周长求90度弯头内弧的长度公式
已知管道周长求90度弯头内弧的长度公式
物理人气:390 ℃时间:2020-02-03 05:44:16
优质解答
必须规定弯曲半径.用已知周长只能求得管道直径,90度弯头的弯曲半径可以是管道半径的1.0、1.5、2.0倍甚至更大.规定了弯曲半径 r 后,弯头内弧的长度就是πr/2.
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