An ill-fitting PFD may not provide the expected flotation benefits.

不合身的个人漂浮装置可能无法提供预期的漂浮救生效果。

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In unadjusted analyses, women with diabetes and women who were obese had greater odds of having each PFD.

在未经调整的分析中，患糖尿病的妇女和肥胖的妇女罹患盆底功能失调的几率更高。

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The perturbational finite difference method (PFD) is a new method of constructing high accurate difference scheme.

摄动有限差分（PFD）方法是构造高精度差分格式的一种新方法。

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PFD's agents have spent the past six years taking big bonuses and commissions for themselves without doing much to expand the business.

ECONOMIST: Will Britain's oldest literary agency slowly fade away?

PFD, but an amicable agreement does not look likely.

ECONOMIST: Will Britain's oldest literary agency slowly fade away?