The plastic base can be provided with a sounding circuit.
在塑料底座内可安装发声电路。
Microscopic needle-shaped crystals of herapathite are embedded in a plastic base.
将碘硫酸奎宁的微观针状晶体嵌于塑料片基之中。
The utility model discloses an assembled plastic base steel ring which comprises a ring-shaped base made up of plastics.
本实用新型公开了一种组合式塑料座钢领。
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