工程师喜欢陶瓷材料，因为它们加热时不会融化，这点不像金属和塑料，尽管它们是脆的。
Engineers like ceramics because they can be heated without melting. Unlike metals and plastics, though, they are brittle.
金属镓在室温里是固体状态但是把它放在你的手上它就会融化，金属铯，元素钫这些比较稀有的元素在室温或者接近室温的情况下是液体状态的。
Gallium is solid at room temperature but will melt if held in your hand, caesium (Cs), and francium (Fr) ?the second rarest naturally occurring element, can also be liquid at or near room temperature.
行星凝聚过程中，重力和微粒碰撞造就了高温环境，这对融化漂浮在太空中的金属粒子是必需的，各种矿物也开始形成。
As the planets congealed, gravitational forces and particle collisions created the high temperatures necessary to melt metals floating around in space, and minerals began their diversification.
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