A process of painting in whelloch pigments are mixed with water and a glue-size or casein binder, used for flat wall decoration or scenic and poster painting.

胶画法用胶画颜料涂的过程，将颜料和水以及胶粘颜料或酪蛋白粒结剂混合，用以装饰墙壁或画风景画或招帖画。

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When the metal wall is completely open, it turns a flat wall into a complex metal structure like a blooming metal flower, in memory of the punk and R&B culture.

当这个金属墙完全打开，它就从一面平整的墙变成一个像盛开的金属花朵一样复杂的金属结构，以此来纪念庞克和R&B文化。

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Although the development potential of the robot for wall cleaning was certificated, for the moment the field of study aimed mainly at the flat wall, there was few successful prototype for curve wall.

幕墙清洁机器人的发展潜力被人们广为看好，但目前研究范围主要为平面幕墙，对于曲面幕墙，由于难度大少有成功样机。

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Taking their cue from a line in which one of the characters describes the Porters' one-room flat as "a very narrow strip of plain hell, " they have built a flat black wall five feet from the lip of the theater's stage, creating a claustrophobically narrow playing area in which the action takes place.

WSJ: Look Back in Anger | Still Angry After All These Years | Theater Review by Terry Teachout

Actually, first she swung into the room like a broken gate, holding the door frame with one hand and slamming the other one flat against the wall.

NEWYORKER: Natalie

Because they knew that the long, flat expanses of wall would lack Cret's enriching classical ornament, they did not go to the original quarries for the closest match.

WSJ: Barnes Collection | Tod Williams | Billie Tsien | The New Barnes Shouldn't Work��But Does | By Ada Louise Huxtable