本发明公开了一种由吡咯、芳香醛和空气为原料高产率合成四芳基卟啉的 方法和设备。

The invention discloses a method and an apparatus for the synthesis of tetaraary porphyrin at high yield with raw materials including pyrrole, aromatic aldehyde and air.

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梅兰芳、程砚秋、尚小云和荀慧生被合称为京剧四大名旦。

Mei Lanfang, Cheng Yanqiu, Shang Xiaoyun, and Xun Huisheng are recognized as the four greatest artists of Beijing Opera.

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今天你年芳40了，我爱你……瞧，奔四没这么可怕的。

You're 40 years YOUNG and I love you... you see? Turning 40 isn't so bad.

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