WD-40 contains an abundance of alkanes—hydrocarbons that match the formula CxH2x+2, usually in a long, zigzagging chain.

WD-40含有丰富的烷烃，他们都符合饱和烷烃的通式CxH2x+2，而且往往拥有长且曲折的碳链。

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Objective to investigate the effect of the formula of amino acid enriched branch chain amino acid (BCAA) on nutritional support in postoperative traumatic patients.

目的观察富含支链氨基酸(BCAA)的氨基酸配方对胃肠外科手术创伤患者的营养支持效果。

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The formulas calculating higher derivatives of parametric functions and composite functions are given by the chain rule and the product formula for derivatives.

用函数的链式法则和乘积公式给出了参数函数和复合函数的高阶导数的计算公式。

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Referring to previous 'cash-for-favours' claims, Mr Collins said the smallpox contract could be "another coincidence in a long chain of coincidences after Mittal, Enron and Formula One".

BBC: Cash link to smallpox contract denied

The continuing success of Tesco, Britain's largest supermarket chain, shows that a retailer with the right formula and effective management can still thrive in these harsher times.

ECONOMIST: Retailers

At Stock Options Channel, our YieldBoost formula has looked up and down the ALU options chain for the new July contracts and identified the following put contract of particular interest.

FORBES: ALU July Options Begin Trading