基本解释[經濟學]正比硼計數琯词组短语短語proportional boron -lined counter 正比塗硼計數琯boron trifluoride proportional counter 三氟化硼正比計數琯boron deposited proportional counter tube 硼沉積正比計數琯proportional boron counter更多词组专业释义經濟學正比硼計數琯