去掉字母间的空格Ｙｅｌｄｅｎ Ｅ ＦＳｅｇｕｉｎ Ｈ Ｊ ＪＣａｐｊａｃｋ Ｃ Ｅｅｔ ａｌ．Ｍｕｌｔｉｃｈａｎｎｅｌ ｓｌａｂ ｄｉｓｃｈａｒｇｅ ｆｏｒ ＣＯ２ｌａｓｅｒ ｅｘｃｉｔａｔｉｏｎ［Ｊ］．Ａｐｐｌｉｅｄ Ｐｈｙｓｉｃｓ Ｌｅｔｔｅｒｓ１９９１５８７：６９３－６９５．［１２］ Ｖｉｔｒｕｋ Ｐ ＰＢａｋｅｒ Ｈ ＪＨａｌｌ Ｄ Ｒ．Ｓｉｍｉｌａｒｉｔｙ ａｎｄｓｃａｌｉｎｇ ｉｎ ｄ

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