"In-space manufacturing is something that is happening now," says Libby Jackson, head of space at the Science Museum.
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以前，村里一些旱地靠天吃饭，村民们期盼能建成旱作高标准农田；牛羊价格波动等风险让村民们心里不踏实，希望能有专门的畜牧保险；村里老人多，做饭难、吃饭难等问题十分突出……这不仅是黄旗滩村村民的急难愁盼，也是西部地区许多农村都面临的难题。
"It is the only piece of science I've ever done that's really emotionally got me," he says.