Seepage control in dam, design of freezing resistance for concrete face slab, new caulking water sealing material and surface coat on face slab are mainly presented.

本文重点介绍坝体渗流控制，混凝土面板抗冻设计，及新型嵌缝止水材料，面板表面涂料的研究。

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He had on a long trench coat that was almost in shreds and a hat topped his head, pulled down so you could not see his face.

他穿着一件破烂不堪的军大衣，头上斜扣着一顶帽子，几乎遮住了整张脸。

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The Toaster wears a black hat and coat and hides his face with a hood or scarf.

祝酒人头戴黑帽身穿黑衣，用围巾裹着面庞。

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His smile never left his face, but his fingers shook as he touched the flower on his coat.

VOA: special.2009.04.04

Ally wiped her face on her coat sleeve.

NEWYORKER: She��s the One

Even when there is no time I have two quick tricks: a tinted moisturizer from Laura Mercier does wonders for the face and a stylish coat can hide a multitude of sins.

WSJ: Annette Tapert on Nan Kempner, Josephine Premice and More: Always Dress to Impress

There was a measure to the man in the hooded coat, old stooped body, face framed in monkish cloth, a history, a faded drama.

NEWYORKER: Midnight in Dostoevsky