評論
打印
Voice 2: Scientists make aerogel by mixing together four different chemicals. The chemicals react together and form a wet, soft substance. Then scientists put the substance under a lot of heat and pressure. The final result is a very dry, very fine, soft material, like a sponge. It is blue. And it is very light. That is because aerogel is over ninety-nine percent porous - ninety-nine percent just holes!
聲音2：科學家將四種化學物質混合，制成了氣凝膠。四種化學物質互相發生反應，然后形成了一種又濕又軟的物質。隨后，科學家讓這種物質接觸大量熱量和壓力。最終得到了一種非常干燥、纖細又柔軟的材料，就像海綿一樣。這種材料呈藍色。重量非常輕。這是因為孔洞在氣凝膠中的占比超過99%，氣凝膠中有99%都是孔洞！
Voice 1: The fact that aerogel is so porous is very important. In fact, it is the reason why NASA chose to use this material for the Stardust project. You see, aerogel can capture materials in its centre.
聲音1：氣凝膠的孔洞率極高這點非常重要。事實上，這就是美國航空航天局選擇這種材料進行星塵號項目的原因。因為氣凝膠可以捕獲位于其中心的材料。
Voice 2: The purpose of the Stardust was to explore a comet. A comet is a small object that circles the sun. Stardust was the first NASA project designed to return materials from outside of the moon's orbit.
聲音2：星塵號的任務是探索彗星。彗星是太陽周圍的一種小物體。星塵號是美國航空航天局啟動的首個從月球軌道之外收集樣品并帶回地球的項目。
譯文屬可可原創，僅供學習交流使用，未經許可請勿轉載
