Why is the letter D like a sailor?

字母 D 为什 么跟海员一样?。

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Derivative action (referred to by the letter d) measures and responds to the rate of change of process signal, and adjusts the output of the controller to minimise overshoot.

微分动作(字母d表示)测量并对过程信号变化率进行反应，调整控制器的输出以达到最小的突出峰。

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For each of them there are four choices marked A, B, C and D. You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.

每题都有对应标记的A、B、C和D四个选项，请选择最佳选项并在答题卡2的相应字母中间划横线。

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D'Arcy plans to use the letter to embarrass Madame X's husband and destroy his political power.

VOA: special.2009.12.26

> But if you actually do the math, those zeros and ones translate to an ASCII character which is D which is gonna be a 65, 66, 67, 68 would be the letter D.

>，你们自己算算看,把这些0和1转换成D对应的ASCII码,那么就是，65，66，67，68，对，68对应于“D“

哈佛公开课 - 计算机科学课程节选

Well, get string again is returning the address of the string the user typed in, D the address of the very first character like the letter D and storing that address in this variable s1.

好的，GetString返回的是,用户输入的字符串的地址，第一个字符的地址，比如字母,然后把这个地址存储在这个变量s1中。

哈佛公开课 - 计算机科学课程节选

Ray provided police with "some vague information" about his mother, saying her name was Doreen, and he wore a gold-colored necklace around his neck that held a pendant with the letter "D, " police said.

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And I told him that if he wrote you a letter I'd give it to you, and I have.

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After former team president Joe Banner sent him a letter saying he'd consider him if a position opened, Roseman stepped it up.

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