衰减的单位dB是什么意思？ - 知乎
Oct 3, 2013 · 如果我们用dB来表示的话，第一种情况增大了3dB，而第二种情况增大了10.4dB，更能客观地反映出人的感官的感觉特性。 而在电子工程技术领域，dB是国际上统一使用的电信 …
db是什么意思？ - 知乎
Sep 18, 2021 · dB和dBm的计算 dB的意义在于把一个很大或很小的数比较简短地表示出来，即数值变小，读写方便。 当一个高频线性放大器的输入功率为10W，输出功率为40W时，功率的 …
File extension .DB - What kind of database is it exactly?
12 If you're on a Unix-like platform (Mac OS X, Linux, etc), you could try running file myfile.db to see if that can figure out what type of file it is. The file utility will inspect the beginning of the …
*.db是什么文件，如何打开？ - 知乎
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database - How to open this .DB file? - Stack Overflow
I have a few database files with .db extension and I want to take a peek. However I don't know what program should I use to open the files. I've found a similar quesiton that says checking …
What is the difference between *.sqlite and *.db file?
May 1, 2011 · 24 A .sqlite file is as the name implies a file that contains an SQLite database. The .db file extension is used by Oracle, Paradox and XoftSpySE databases. [1] As Christian noted …
How can I calculate audio dB level? - Stack Overflow
Mar 15, 2010 · I want to calculate room noise level with the computer's microphone. I record noise as an audio file, but how can I calculate the noise dB level? I don't know how to start!
Open database files (.db) using python - Stack Overflow
Jun 12, 2020 · I have a data base file .db in SQLite3 format and I was attempting to open it to look at the data inside it. Below is my attempt to code using python. import sqlite3 # Create a SQL …
sqlite数据库的三种后缀（.db .db3 .sqlite）有什么区别？ - 知乎
Aug 23, 2020 · SQLite数据库可以使用不同的后缀来命名文件，常见的后缀有.db、.db3和.sqlite。 这些后缀没有实质性的区别，只是用于标识文件的类型。
what does the assembly instruction 'db' actually do?
Jun 30, 2013 · I'm a bit confused as to what the asm instruction db actually does. I've read that it defines a byte, but what does that actually mean? Does it move the value into a certain place …