Uses the twin mast column type structure, the load-carrying capacity is big, the platform area is big, the stability is extremely good, the revolution is flexible, carrying out is convenient.

采用双桅柱式结构，载重量大，平台面积大，稳定性极好，运转灵活，推行方便。

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For decades, Phillips' column competed with the Ann Landers advice column written by her twin sister Esther Friedman Lederer.

BBC: 'Dear Abby' author Pauline Friedman Phillips dies at 94

At first she ran it with her twin sister Pauline, but they fell out for a time after Pauline started her own successful advice column.

ECONOMIST: Esther Lederer, agony aunt, died on June 22nd, aged 83