bubble e sand 气泡砂
Occasionally, a bubble is not removed during refining, a sand grain refuses to melt, a tremor in the tin puts ripples into the glass ribbon.
"有时候，在提炼的过程中会出现这些情况：一个气泡没有被移除，一个砂粒没有熔化，（熔融的）锡的一次颤动把波纹带进了玻璃带中。
Bubble jamming exhibits universal features that may be compared with those in systems of sand grains, colloidal particles, and glassy molecular liquids.
气泡阻塞展现出某些普适特性，可以和沙粒、胶状颗粒、玻璃状分子液体等系统相比较。
It was only when the economic bubble burst that Thailand's leaders realized that they had been burying their heads in the sand for many years.
直到经济肥皂泡迸裂，泰国领导人才意识到多年来他们一直像鸵鸟那样把脑袋埋在沙堆里。
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