The urban vertical greening may divide into six forms: wall greening, column greening, fence greening, slope greening, pergola greening and roof greening.

城市垂直绿化的形式可分为：墙面绿化、立柱绿化、篱垣绿化、护坡绿化、棚架绿化、屋顶绿化。

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A few forms of the crossover pipe-adjustment valve combination in vertical single pipe hot water heating system are analysed and compared each other in adjustment performance.

对垂直单管热水供暖系统中几种跨越管—调节阀组合形式的调节性能进行了分析比较，从而得出调节性能最佳的方式。

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Horizontal axis wind turbine and vertical axis wind turbine (VAWT) are two basic forms of wind turbine.

水平轴风力机和垂直轴风力机是风力机的两种基本形式。

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Art Deco's simplified, streamlined forms, thrusting vertical elements and geometric ornamentation captured the spirit of a rising city determined to secure its place in the modern world.

WSJ: Touring Asia's Art Deco Gems in Shanghai and Napier, New Zealand