2.1.2 在此安全功能实例中,一个已开动的紧急停车按钮禁止了一个故障安全数字 输出模块(F-DO)的输出,例如在操作一个危险的机器时。此输出模块的其它 所有输出都保持现状。
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It is. It's drawn like an array, it effectively is an array so bracket zero means go to the zero's location in that array, which happens to be F and do what with it?
它看起来像个数组,实际上也是一个数组,所以【0】就是定位到那个数组的0的存储单元,对于f发生了什么?用它做什么?
z I do F dot n. That just gives me the z component which might involve x, y and z.
把F和n做内积,于是得到,它由x,y,z组成。
F: Really? How do you know which bills are marked?
朋友:真的吗?你们怎么知道哪些钱作了记号呢?
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