公司开发的切割用增效天然气较传统切割燃气具有明显的安全、环保、技术及经济优势(详见附表)。

Compared with traditional gas cutting, the effective gas used for cutting developed by our company is much safer, more eco-friendly, more advanced and more economical. (See attached list).

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而其中土压平衡式盾构机(epb)又以其技术及经济上的优越性，在盾构施工法中占有绝对的优势地位，成为城市地下工程施工技术的主流。

With the superiority of technology and economy, EPB shield machine has been in the overwhelming dominance and become the mainstream in construction technology of urban underground engineering field.

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