Results NTHI could obviously increase discover rate of spontaneous echo-contrast, density and brightness of smoke-like echo.
结果NTHI明显增加心腔内自发性造影回声的检出率及云雾密度与亮度。
This method can refine, correct and find the best balance between brightness and density works.
这种方法可以细化、纠正并找到作品亮度和密度的最佳平衡点。
The results show that using 2, 2-bipyridyl and sodium thiosulfate can increase brightness of coating, enlarge the scope of current density.
试验结果表明：2,2 -联吡啶和硫代硫酸钠联合使用可以提高镀层的光亮性，扩大镀液的电流密度范围。
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