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量子光电倍增管
🗣️ 情景例句
Would you like a cocktail before dinner?
你要在饭前来杯鸡尾酒吗？
Is it long way from here to the United Air Lines counter?
从这里到美国航空公司柜台有一段很远的路。
and they provided a striking demonstration of the potentialities hidden in instruments and apparatus.
并充分显示出了仪表和仪器的潜在力量。