So the paper not only seems useful to deep-sea cobalt crust mining, but also offers a new design method and powerful tool for traditional spiral drum cutting head's parameters designing.

因此，本论文不仅对开发大洋钴结壳等矿产资源具有十分重要的意义，同时它也为传统的螺旋滚筒式采矿头参数设计提供了一种新的设计方法和有力的手段。

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Getting users to sync their credit cards is critical to the proving-it part, allowing Foursquare access to detailed purchase data that bolsters its claims to be an effective tool for vendors trying to drum up local busines.

FORBES: Foursquare Inches Toward Profitability With Visa, MasterCard Deals