An artificial structure or excavation made to resemble a cave or cavern 人工挖開的洞室類似山洞或洞穴的人工建筑或人工洞室
A space station is an artificial structure designed for humans to live in outer space 閱讀提示:太空站是在外太空的人造的太空艙,設計適合人類居住,可以用作太空人停留和工作的地方。
A photonic crystal is an artificial structure which has a periodic arrangement of dielectric or metallic materials 光子晶體,即所謂的“光半導體” ,是一種由介質或金屬周期排列構成的人工材料。
It ' s believed they slipped on the plastic sheeting used to keep the water in the artificial structure and couldn ' t climb back out 可以相信的,他們是給塑膠的護墻板滑倒,因為慣性跌入人造湖中卻爬不上岸