例句與造句

1. It is installed in Destiny laboratory on board the ISS . Its purpose is to process material samples in different ways : directional solidification of metals and alloys, crystal growth of semi-conducting materials, thermo-physical properties and diffusion experiments of alloys and glass-forming materials, and investigations on polymers and ceramics at the liquid-solid phase transition.
2. It's difficult to find solidification of metal in a sentence. 用solidification of metal造句挺難的