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- tube 和 pipe 的区别？ - 知乎
1 形状不同：tube有正方形管口的，有长方形管口的，也有圆形的；pipe都是圆形的； 2 韧性不同：tube有刚性的，也有紫铜、黄铜做的挠性tube；pipe都是刚性的，抗弯折； 3 分类方式不同：tube按外径和壁厚；pipe按壁厚代码pipe schedule和nominal diameter (欧标)=national pipe size (美标) 4 使用环境不同：tube用于
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Download the YouTube app for a richer viewing experience on your smartphone, tablet, smart TV, game console, or streaming device How to Sign In to YouTube on
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Descarga la aplicación YouTube para disfrutar de una experiencia más completa en tu smartphone, tablet, smart TV, videoconsola o dispositivo de streaming Cóm
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Official YouTube Help Center where you can find tips and tutorials on using YouTube and other answers to frequently asked questions
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Videos you watch may be added to the TV's watch history and influence TV recommendations To avoid this, cancel and sign in to YouTube on your computer
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Note: Turning on Restricted Mode isn’t the same as age-restricting videos Learn more about age-restricted content
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