Specimen of the adjustable shock absorber was developed and was subjected to damping performance bench test.
研制了可调阻尼减振器样件并在试验台架上进行了性能测试。
Equip the special high-grade performance adjustable piano bench and the piano protective cover.
配有专用的高级弹奏升降琴凳和钢琴保护罩。
Equip the special high-grade performance adjustable piano bench and the piano protective cover.
配有专用的高级弹奏升降琴凳和钢琴保护罩。
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