对称度作为几何公差中的一项重要指标，用于控制被测要素相对于基准要素的对称分布程度，广泛应用于高精度机械制造、装配定位及功能互换性设计中。 对称度的测量与计算方法基本上跟单方向的位置度一样，都是2*(理论值-实测值)，但此公差特征没有理论值 ...

If you're seeking the ultimate PC gaming experience without breaking the bank, these cheap gaming PC deals could be precisely what you need. They balance performance and affordability perfectly, ...

What is the best PC controller? A great gamepad is one of the best ways to enhance your PC gaming, allowing for a more comfortable, reclined gaming style and bringing analog controls that can be ...

Grab one of the best PC controllers for when your keyboard and mouse simply won't do. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Using a ...

The list of the best PC games is flourishing in 2025. The platform is packed with fantastic options, from big sprawling adventures that will let you put the best gaming PCs out there to good use, to ...

Arguably as important as some component choices or upgrades you'll make to your rig, the best PC gaming headsets deliver an unparalleled audio experience for gaming on PC while also serving a range of ...

We list the best PC cleaners, to make it simple and easy to declutter your PC and improve your processing speed. There are many free PC cleaners and optimizers that claim to deliver noticeably faster ...

Whether you’re looking for a productivity desktop, a gaming PC powerhouse, or a stylish all-in-one Windows machine, we’ve got you covered. The team at PCWorld sort through all of the daily computer ...

What is the best PC case? That will depend on your needs, but choosing the right case is essential for ensuring your gaming PC performs properly, keeps cool, and of course, looks good. The right size, ...

You need antivirus software. Attacks on your PC keep getting more sophisticated, thanks to the help of AI—we’re seeing more and more AI-fueled attacks as the months tick by. Even the tech-savvy and ...

2025 is well underway, and thus the time has come once again to refresh IGN’s list of the 25 Best Modern PC Games. But what do we mean by “best?” To be very clear, this is not an attempt at an ...

If your PC doesn't officially support Windows 11, Microsoft recommends that you consider purchasing a new PC. Before you rush to Best Buy, however, check out how to sneak past the update requirements ...