环矩形负压吸附导轨 Loop rectangular Negative Pressure and Adsorption sliding guide
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特制负压吸附工件，专用布料通道及张紧结构设计，有效保证裁剪质量；
Special negative pressure adsorption of the workpiece, special distribution channel and the structure design, effectively guarantee the cutting quality;
提出了用负压吸附涂料层的方式测试涂料透气性的新方法，并推导出了在该方法下计算涂料透气性的数学表达式。
This paper presents a new method in which the coating layer is absorbed by low vacuum for determining the permeability of coating used in casting.
金属液流经过滤介质时，由于流动在孔道内产生真空，液态金属内的夹杂和气体被负压吸附到过滤介质的表面而产生净化作用。
When liquid metal flows through the filter, there will be vacuum produced in filter's hole. Inclusion and gas in liquid metal were absorbed to the filter by vacuum, that cause liquid metal cleaning.
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