Researchers used a special laser 3D printing method to melt fake lunar soil into layers and fused it with a base surface to manufacture small, heat-resistant objects, potentially paving the way to more sustainable and cost-effective space missions, a new study suggests.

2026年2月25日 · 杨勇 · 来源：tutorial资讯

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For all of our test units that didn’t have a built-in preamp, we used the Fluance PA-10. At $100, it’s an affordable upgrade if you’re looking to bypass a turntable’s included components or if you’re looking to go more analog with your turntable purchase. There are no buttons or controls, just connect your turntable, speakers and ground wire (if you’re using one) and you’re ready to go. It’s simple, straightforward and inexpensive, so it’s a great option for beginners and more experienced vinyl collectors alike.

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