krypton造句
31. Objective To analyse the effectiveness of treatment and prevention of retinal detachment by krypton laser.
32. AIM : To evaluate the curative effect of krypton yellow laser in treatment of diabetic macular edema.
33. Any of the six chemical elements that make up the rightmost group of the periodic table as usually arranged: helium, neon, argon, krypton, xenon, and radon.
34. ChsracteristiCS and factors that affect the lifetime of a new type of long-lifetime krypton arc lamp are discussed in this P8per.
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