| 例句 |
The acid etched holes in the crystal surface.那种酸在晶体表面蚀刻出一些小孔。The ordinary and extraordinary rays were interconverted when the crystals were placed at right angles.晶体成直角置放时，寻常光与非寻常光便互相转换。These thin crystals transmit much of the power.这些薄薄的晶体传导了大部分的动力。Each mineral has crystals of a particular shape.每种矿物的晶体都有其特殊的形状。These crystals are then embedded in a plastic, and the plastic is extruded as a wire.然后将这些晶体嵌入一块塑料，再把塑料挤压成线。The boy can make crystal sets.那个男孩会做晶体收音机。The crystal is perfectly symmetrical.这晶体完全对称。Sodium chloride forms polar crystals.氯化钠形成极性晶体。Adding acid to the test tube starts a chemical process which leads to the formation of crystals.把酸加入试管就会产生化学反应，最后形成晶体。The pictures showed cracks and other irregularities in otherwise perfectly regular crystals.这些图片表明：除了一些裂缝及凹凸不平之处，这些等轴晶系晶体无可挑剔。Some crystals are so small, a microscope is needed to make them out.有些晶体小得要用显微镜才能看见。When energetic particles or quanta of radiation pass through a crystal, they excite a few of its atoms into a higher energy state.辐射性的高能粒子或量子穿过晶体时，会把晶体的一些原子激发成更高的能态。 |