The device has two porous vertical pieces and at least one horizontal supporting piece.

该器件有两个孔垂直件，至少有一个横向配套件。

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But, also, if you sum the flux through the surface of each little piece, well, you will see that you will be integrating twice over each of these vertical cuts.

如果对这些小块表面通量求和，就会看到，这些垂直切口积分了两次。

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Joined as one piece and rotatable to the vertical strut, locked to stop rotation after in position.

连接成一个整体并且可绕竖向支撑转动，就位后锁定。

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When viewed from the northeast corner of 60th Street and Park Avenue, the slim vertical piece is perfectly framed by the arched door of the church.

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