...有深受专业摄影师推崇的EOS综合除尘系统,其机身及快门均采用防尘物料制作,于影像感应器前的滤镜加入氟涂膜 (Fluorine coating),减低微尘依附;而影像感应器自动清洁装置,更会于开机及关机一刻以超声波高速震动除尘。
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含氟涂膜组和含氟牙膏组新增龋面均的差异无统计学意义。
There was no significant difference of the dfs reduction between the fluoride vaniish group and fluoride toothpaste group.
试验结果表明:加入附着力促进树脂的氟涂料对其综合性能基本上无影响,但可改善涂膜的耐水性和提高其对多种底材的附着力。
It was found that incorporation of adhesion promoters will not influence the other properties of fluorocarbon resin coating, and will improve the water resistance and adhesion on various substrates.
结论:使用氟化钠涂膜与氟化钠溶液相比氟离子与牙釉质接触和反应的时间更长,有效地降低脱矿,提高牙釉质抗酸溶解性。
Conclusion: The time of NaF varnish contact and reaction with enamel was longer than NaF solution to increase acid-resistance and reduce demineralization effectively.
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