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为维护国家安全 中国限制出口无人机和高性能计算机 - 资讯 - 清泛网 - 专注...
...空飞行器和无人驾驶飞艇方面，最大续航时间大于等于30分钟小于1小时、能在大于等于46.3千米每小时(25节)阵风条件下起飞和稳定可供飞行的，最大续航时间大于等于1小时的，均在限制范围内。
中国“彩虹4号”中空长航时查...
Maven Modules + Building a Single Specific Module
...you need to use a colon if you are referencing an artifactId which differs from the directory name:
mvn install -pl :B -am
As described here: https://stackoverflow.com/a/26439938/480894
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Make HTML5 video poster be same size as video itself
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I had on-play background resize on mobiles. From other questions/answers here (e.g. stackoverflow.com/questions/18229974/…) seems the problem is duplication of images (the player css background and the video element poster). This fix worked.
– p...
PHP Function with Optional Parameters
I've written a PHP function that can accepts 10 parameters, but only 2 are required. Sometimes, I want to define the eighth parameter, but I don't want to type in empty strings for each of the parameters until I reach the eighth.
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How to prevent form resubmission when page is refreshed (F5 / CTRL+R)
...rything but we choose only to process the submission data if its different from the data sent last time (which we store in the session var 'messageIdent'). Are you processing your form submission within the 'if messageIdents are different' clause (ie where 'do_your_thang()' is)?
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Should URL be case sensitive?
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@DanFromGermany, path is case-sensitive can be deduced vaguely from here "URLs in general are case-sensitive (with the exception of machine names).There may be URLs, or parts of URLs, where case doesn't matter, but identifying th...
Git rebase --continue complains even when all merge conflicts have been resolved
...g the conflict, you remove everything in your new patch, keeping only code from the branch you rebased on. Now when you add the file, it will be exactly like the one you tried to rebase on. git status will show no green line displaying the modified files. Now, if you do
git rebase --continue
git ...
How do I create a nice-looking DMG for Mac OS X using command-line tools?
...s points for auto-copying to /Applications if the app detects it's running from ~/Downloads. See also this old article by John Gruber.
– Andrey Tarantsov
Apr 7 '16 at 14:52
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How do I check OS with a preprocessor directive?
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The Predefined Macros for OS site has a very complete list of checks. Here are a few of them, w...
What is the advantage of using REST instead of non-REST HTTP?
...rly: "The client needs only know the initial URI, and subsequently chooses from server-supplied choices to navigate or perform actions.". Basically, if any part of an API documents endpoints, e.g. says "given a user id, you can get user info at /user/{id}, then it's not restful. Consider: does your ...