英语词汇“rare earth er”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	rare earth er
释义	rare earth er 稀土元素Er
随便看	piston oiling piston oil-pump piston oil ring piston only piston-operated valve piston oscillation piston oscillator piston ovality piston packing piston-packing piston packing cup piston packing expander piston packing leather piston packing plate piston packing ring Piston pairs piston path pistonphone piston phone pistonphone method pistonphones pistonpin piston ring belt piston ring breakage piston ring carrier