d pi发音

意思翻译

abbr.每英寸点数（dotsperinch）；数据处理设备（DataProcessingInstallation）

相似词语短语

pi───abbr.产品改进（productimprove）；预估发票，形式发票（proformainvoice）；首席研究员（principalinvestigator）

cotangent pi───余切π

pi pron───n.粉病灵

pi no───abbr.正输入-负输出（PositiveInput-NegativeOutput）；n.(Pino)人名；(英、法、西、意、葡)皮诺

pi t───n.矿井；深坑；陷阱；（物体或人体表面上的）凹陷；（英国剧场的）正厅后排；正厅后排的观众；n.(Pit)人名；(东南亚国家华语)必；vt.使竞争；窖藏；使凹下；去…之核；使留疤痕；vi.凹陷；起凹点

approximating pi───近似pi

pi ka───n.[脊椎]鼠兔

pi ow───皮奥

pk pi───峰值pi

双语使用场景

So, that's cosine theta d theta. And, well, if you do things with substitution, which is the way I do them, then you should worry about /2 the bounds for theta which will be zero to pi over two.───所以dx=cos，θdθ，如果用变量替换法来做，接下来就要考虑θ的取值范围,它是从0取到π

So if we want to talk about the volume of that, we just talk about the surface area, which is 4 pi r squared, and we multiply that by the thickness d r.───如果我们要讨论它的体积，我们要用的是表面面积，也就是4πr的平方，乘以厚度dr

perfectly spherical shell dr at some distance, thickness, d r, dr we talk about it as 4 pi r squared d r, so we just multiply that by the probability density.───在某个地方的完美球型壳层,厚度，我们把它叫做4πr平方，我们仅仅是把它,乘以概率密度。

英语使用场景