SA2K是为那些对音乐有著浓厚兴趣的人，想聆听每一个音乐的细节和微妙之处同时也想拥有一个复合型喇叭的人们所设计的。

SA2K master are for people with a burning interest in music, and who want to hear every detail and nuance in the music and at the same time want a compact loudspeaker.

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目的比较全酸蚀和自酸蚀两种黏结系统联合复合树脂重塑喇叭状残根的微渗漏。

Objective To evaluate microleakage of total-and self-etch system combining with resin composites in rehabilitating flared root canal.

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互通立交的型式很多，有喇叭型、菱形、环形、苜蓿叶型、半定向式、定向式及复合式等几种基本形式。

There are many types and forms of interchange, such as trumpet type, rhombus type, ring type, alfalfa leaf type, partly directional form, directional form, compound form and so on.

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