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- Keywords Pr3+ ion;photon cascade emission;VUV excitation;low temperature spectra; 三价镨离子;光子级联发射;真空紫外激发;低温光谱;
- The water formed a cascade down the mountain. 水沿山泻下，形成一条瀑布。
- The emission of visible light by a hot object. 白热光物体遇热发出可见光
- cascade emission 级联发射
- The amount or rate of emission or ejection. 排放量流量、流速，或排出量，排出的速度
- photon cascade emission 光子级联发射
- Her hair fell over her shoulders in a cascade of curls. 她的一头卷发一直披到双肩上。
- When it rained, water would cascade down the window. 下雨的时候，雨水像瀑布一样沿着窗沿泻下。
- The fireworks went off in a cascade of colour. 烟火散开来象一片五彩缤纷的瀑布。
- The firework went off in a cascade of colour. 烟火散开像一片五彩缤纷的瀑布。
- Emission and propagation of energy in the form of rays or waves. 发射以光线或波的形式发出和传播能量
- A cascade of blood spouted from the hole. 伤口不断冒血。
- Her long hair fell over her shoulders in a cascade of curls. 她长长的卷发像瀑布一样披泻在肩上。
- One set of provisions tightens emission standards. 一套使排放标准更加严格的规定。
- A steep descent of water from a height; a cascade. 瀑布水从一定高度上陡然而下；瀑布
- A brief, sudden emission of air, vapor, or smoke. 一阵烟空气、蒸汽或烟雾短促而突然的散发
- The cascade falls over a tall cliff. 瀑布从高高的悬崖上倾泻下来。
- An example is the emission of light from matter. 物质的发光即为一例。
- Her hair was styled into a cascade of spiral curls. 她的头发被做成了瀑布般的螺旋形鬈发。
- DOES CASCADE DESIGNS HAVE A REPAIR SERVICE? 波状设计的有维修服务吗?
