可选双功放版本，内置dsp，全天候，巡演和安装用途。

Optional Bi-amped version with built-in DSP, weatherized, touring and install versions.

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可选双功放电路，波罗的海桦木箱体，多层催化涂漆，可选白色，灰色或不涂漆。

Optional bi-amp circuitry. Baltic birch plywood enclosure with catalyzed multi-layered finish, available in white, gray and unfinished.

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结果18例成功放置双j管行内引流，1例因输尿管上段高度纡曲狭窄置管失败，6例行单纯球囊扩张。

Results Balloon catheter dilatation was performed in 6 cases. DoubleJ ureteral stent was successfully placed in 18 cases, and failure to success in 1 case due to tortuous ureter.

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