词汇	Useless PCB
释义	Useless PCB 废旧电路板
随便看	concrete monolith breakwater concrete monolithic flooring concrete mortar concrete, mortar concrete moulding board concrete mould oi concrete mould oil concrete movement concrete multi-aggregate gradation concrete multi-layer medium concrete multi-row bore pint-size block concrete music concrete nail concrete nature concrete NDT concreteness concrete number concrete object Concrete objects such as trees concrete of aglain odorate concrete of airfield pavement concrete of cement concrete of ceramic particle concrete of dry consistency concrete of high early strength