其中包括最为顶级的合成齿轮油,如沙特阿美万力达(WALDA) T4 GX,即使在极端负荷和温度条件下仍具有超常的使用寿命。
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John Walda, the group's president, said the financial squeeze from fewer students is forcing such colleges to find ways to boost revenue, control costs and seek a way to stand out from the crowd.
WSJ: Colleges Cut Prices by Providing More Financial Aid
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