The large heat loading in converter leads to the easily distortion of oxygen hole in lance tip, which has influence on the efficiency of steel-making and the life-span of oxygen lance tip.

转炉氧枪喷头热负荷大，导致喷孔容易变形，进而影响炼钢效率和喷头寿命。

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The oxygen injection by top lance and side lance can increase the effective stirring power and enhance heat transfer efficiency.

通过顶枪、侧枪吹氧，可以提高搅拌能，提高传热效率。

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For the actively inclined, try the Ferrari driving school, the Ralph Lauren weekend in Paris, the bike ride with Lance Armstrong, the lunch with Martha Stewart, the Lebron James-hosted Miami Heat game, the cooking class with Jacques Pepin or the Julien Schnabel studio tour.

FORBES: Ten Grand Gets You Access to Anna Wintour - Or a Polo Match With Nacho Figueras