A method for roll angular error measurement of NC machine tool vertical axis was studied based on straightness measurement using laser interferometers system.

以激光干涉仪直线度误差测量为基础研究了数控机床垂直轴滚转角误差的检测方法。

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Flip through the Seattle architect's portfolio and you'll see roofs that levitate on muscular pistons, angular cabins that roll across an alpine valley on wheeled stilts and Brobdingnagian hand cranks that swivel six-ton window walls.

WSJ: Tom Kundig on the Frey House II | My Favorite Room