DN65
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DN65的钢管外径是多少？
海影lyly 2022-01-24 23:56 开发者_如何学Python 这个看标准的国标A系列是76.1（73）B系列是76 ，美标的是73，日标是76.3，德标是76.1这些是工业级管，至于内径就看壁厚是多少，外径减去壁厚的两倍就是实际内径[详细]
2023-01-03 01:48 分类：问答Addressing a single dimensional pointer array with two dimensions
I have the following homework question: Consider the following declarations and answer the question. char strarr1[10][3开发者_C百科2];[详细]
2022-12-19 08:56 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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