The simple methods are put forward to calculate Fermi level and edge level of sulfide mineral by means of potential of mineral electrode and zeta potential of mineral surface.

提出采用矿物浮选常用参数，即矿物静电位和矿物颗粒表面动电位来计算硫化矿物的费米能级和边缘能级的简便方法。

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Some are very tall. Yet all are below the level of an observer on the edge, looking over.

VOA: special.2009.10.07

"Deposition" is neatly divided vertically at the level of the leading edge of the piece of wood attached to the cross, to which Christ's feet are nailed.

WSJ: Il Rosso Fiorentino | Deposition | A Maelstrom of Grief | Masterpiece by Peter Plagens

Innovative associations are dealing with the costs of delivering a cutting-edge thought leadership campaign through higher-level sponsorships.

FORBES: How to Dramatically Grow an Association's Membership and Sponsorships

Visitors can see the falls from many vantage points: above from a helicopter or microlight fixed wing plane, at eye level walking across the Knife Edge Bridge that spans the width of the falls on the Zambian side, or from below on a hike.

BBC: Livingstone��s Zambia