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The other used hollow glass spheres and weighed 6.9 pounds .

另一个采用空心玻璃球，重6.9磅。

Canada-based tom chudleigh has created these free spirit eco spheres .

自由精神生态球由加拿大的tomchudleigh设计。

They then coated the spheres with a sticky polymer before heating them again .

然后在再次加热之前给聚苯乙烯球表层涂上一层粘性聚合体。

Inside test tubes in his lab float microscopic , hollow spheres of fat-primitive membrane bubbles .

斯佐斯塔克实验室的试管中漂浮着微观的脂肪中空球，即原始的膜泡。

The advance could help engineers pack all sorts of spheres more efficiently , from nano-sized buckyballs to christmas tree ornaments .

这个进步可以使工程师们更加有效的包装各类球形物品，从纳米级的巴克球到圣诞树饰品都适用。