望大神指点pipenet 警告： Network is under specified ...？ 居然没有大神来，但是经过几天的摸索，已找到解决办法。将network is under specified in analysis phase.复制到帮助中进行搜索得到 insufficient specifications have been supplied, that is: number of flow specifications + number of pressure specifications number of i/o nodes .如图： 因为pipenet是通过列方程求解，所以 必须要使进出口所有 压力 流量参数之和等于进出口节点数 ，方能求解。即data window选项里的calculation spec栏的样子，如图： 注： 压力流量已知参数可以任意组合，组合方式建议自行摸索 。 （版主给多加点分吧，好歹也打了半天字。） 查看更多
single carboxylic acids合适翻译？整句呢? illustrative carboxylic acids include acetic acid, propionic acid and butyric acid. the preferred carboxylic acid starting material is acetic acid. most preferably, the carboxylic acid starting materials are purified single carboxylic acids , although mixtures of such acids could be employed if desired. single carboxylic acids合适翻译？ 蓝色部分拿不准，哪位好人帮忙翻译下？谢谢 查看更多
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