随着重力和机会将较小的碎片粉碎在一起，这种物质逐渐聚集成块状，被称为天体。
This material gradually coalesced into lumps called planetesimals as gravity and chance smashed smaller pieces together.
他相信，制造SQUID时，这项技术的应用比现代的印刷集成电路技术要容易，因为它不需要有光敏涂层，也不再需要化学物质洗去涂层。
He believes this would be easier to carry out than the lithography currently used to manufacture SQUIDs because it would require no photosensitive mask and no chemicals to wash away that mask.
物质在它们的重力作用下聚集成行星、恒星、星系、星系团和超星系团。
Matter clumps under its own gravity into planets, stars, galaxies, clusters, and superclusters.
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