产品中文名称：方形圈 产品英文名称：QUADRING 产品适用的仪器：德国ELEMENTAR 有机元素分析仪 产品产地：进口 供货周期：现货 Copyright ©2007 ANTPedia,
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形圈十方形圈密封压力装置、阀杆操作时绝对无泄漏；
Pressure responsive Viton packing seal arrangement; positive no slack stem action.
从远处看像一座巨大的拱门，它是一个连续的环，像一种方形面包圈。
Looking from a distance like a gigantic arch, it is a continuous loop, a kind of square doughnut.
除了保护特殊镜头的质量，这款照相机有一个限制框可以让你在35 mm的胶卷上拍正方形的照片——或者想它的老同志那样让画面周围有一圈暗角。
In addition to maintaining idiosyncratic lens quality, the camera has a framing mask that lets you shoot square photos on 35-mm film-or even bleed the image to the edge like its old comrades.
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