The third group were prepared using the stainless steel hand K-files with the step-down technique(SS group).
不锈钢K锉组（SS）采用常规手用不锈钢K锉、逐步后退法预备根管。
METHODS: 25 extracted human maxillary anterior teeth, with a single straight root were randomly divided into 5 groups. They were instrumented with K-files and conventional preparation technique.
方法：25颗离体直根管前牙，随机分为5组，不锈钢K锉常规法预备根管，应用5种冲洗剂组合进行冲洗。
The /etc/rc.d directory structure can be used to put in S and K files at the various run levels listed to bring up or down processes.
可以使用 /etc/rc.d目录结构在列出的各个运行级别上放入S和K文件，以启用或停止进程。
In fact, ReiserFS is around eight to fifteen times faster than ext2 when handling files smaller than one k in size!
实际上，当处理小于1k 的文件时，ReiserFS 大概要比ext2快8到15倍！
ext2 is good at storing lots of twenty-plus k files, but isn't an ideal technology for storing 2,000 50-byte files.
ext2很擅长存储大量大小在 20k 以上的文件，但是对于存储 2,000 个 50字节的文件来说，它就不是一种很理想的技术了。
Objective To evaluate the apical sealing ability of obturated root canals prepared hand ProTaper with stainless steel K files in simulated resin root canals.
目的研究两种临床常用的根管预备器械不锈钢锉和镍钛锉预备根管对充填后根管根尖孔封闭性的影响。
Objective To evaluate the apical sealing ability of obturated root canals prepared hand ProTaper with stainless steel K files in simulated resin root canals.
目的研究两种临床常用的根管预备器械不锈钢锉和镍钛锉预备根管对充填后根管根尖孔封闭性的影响。
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