Quality norms of paraffin product are much, main norms controlled are color, chlorine-content, heating decrease volume in many plants.

氯化石蜡产品质量指标较多，各企业主要控制的是色泽、含氯量及加热减量。

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The brains of those aged 40 and older decrease in volume and weight by 5% every ten years.

ECONOMIST: The ageing brain

The increase was the result of an improved sales mix, partially offset by a 3 percent decrease in volume of carats sold during the quarter.

FORBES: Former Harry Winston Diamond Corp. Q4 Sales Up 8%; Ekati Mine Acquisition Is Approved; Luxury Brand CEO Reportedly Resigns

So how did Wall Street get the idea that a 10% decrease in plaque volume was possible?

FORBES: Magazine Article