Hydraulic type row tube bender is simple in structure, reliable which can bend and correct complicated platen with low cost.

自主开发的拉弯式液压成排弯管机具有结构简单、可靠，可弯管屏形状复杂，还可校正管屏、造价低廉等特点。

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The elliptical tube with rectangular plate fin, which is usually called double row tube, is one kind of basic heat exchange element for direct air cooled condensers.

矩形翅片椭圆管，即双排管是直接空冷凝汽器的一种基本换热元件。

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The elliptical tube with rectangular plate fin, which is usually called double row tube, is one kind of basic heat exchange element for direct air cooled condensers.

矩形板翅式，这通常被称为双列管，椭圆管是一种直接空冷凝汽器热交换的基本元素。

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You can also opt for a tube style cushion meant to hold a row of up to six timepieces.

FORBES: Connect

The announcement comes after Tube drivers went on strike on Boxing Day in a row over bank holiday pay.

BBC: London Underground cleaners to strike over pay

Tube drivers on the Jubilee Line have voted to go on two 24-hour strikes in a row over working conditions and claims of bullying.

BBC: Jubilee Line Tube drivers vote to go on strike