Step-back technique; Curving root canal; root canal preparation; root canal condensation.

逐步后退法；弯曲根管；根管预备；根管充填。

youdao

This traditional technique dates back to the Ming and Qing dynasties.

这种传统技艺可以追溯到明清时期。

youdao

Back in 1996 I decided to use a technique called functional MRI to study the brains of men and women who had just fall in love.

回溯至1996年，我决定用一种称作“功能性核磁共振”的技术来研究那些刚刚堕入爱河的人的脑部反应。

youdao

And, in fact there's a technique of analysis used today that's called Rutherford back scattering where people actually saw that this is a means of identifying the substance, the sample.

事实上这是现在用的一种分析技术,称作卢瑟福背散射,就是人们实际上看到的那样,这是鉴别物质样品的一种方法。

麻省理工公开课 - 固态化学导论课程节选

Though the technique dates back to the 1970s, the bags have become more prevalent and their contents more elaborate in recent years.

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Master stonecarver Sandro Fiorentini is dressed in brown overalls, working with a technique that dates back to the days of the Romans.

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Ramming water into an old oilfield to push oil out, a technique that goes back to the late 19th century, is a common Encore exploit.

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