normalized power是什么意思
normalized power
归一化功率; 标准化功率;
[例句]Estimation of Normalized Noise Power Spectrum of Infrared Imaging System with Polynomial Fitting and MATLAB
利用多项式拟合和MATLAB估算红外成像系统的归一化噪声功率谱
swallow后面能加什么介词
swallow up
1. PHRASAL VERB 吞并;侵吞;把…并入其中 If one thing is swallowed up by another, it becomes part of the first thing and no longer has a separate identity of its own.
During the 1980s monster publishing houses started to swallow up smaller companies.
20 世纪 80 年代，一些出版巨头开始吞并一些较小的公司。
2. PHRASAL VERB 用尽，耗光(金钱、资源) If something swallows up money or resources, it uses them entirely while giving very little in return.
A seven-day TV ad campaign could swallow up the best part of £50,000...
7 天的电视广告宣传可能会耗费约 5 万英镑。
3. PHRASAL VERB 吞没;淹没 If a person or thing is swallowed up by something, they disappear into it so that you cannot see them any more.
He headed back towards the flea market and was quickly swallowed up in the crowd...
他转身朝跳蚤市场走去，很快淹没在人群中。
win7安装powerbi，求解决办法
这是因为win7电脑安装powerbi 前需要先安装4.5以上版本的microsoft .netframework，在安装microsoft .netframework时由于电脑缺少信任证书导致microsoft .netframework安装失败，进而powerbi desktop安装不了。-nor
解决方法如下：
1.点击链接下载微软官方证书：MicrosoftRootCertificateAuthority2011.cer
6.此时再重新运行powerbi desktop的安装包则不会报错了。
