sand inclusion

基本解釋

The sand inclusion glass fiber reinforced plastic pipe takes thermosetting resin as base body, take glass fibre and its products as reinforced material.
玻璃鋼夾砂管道（以下簡稱夾砂管）是玻璃纖維與合成樹脂及石英砂的復合體。
A description was made about the method to distinguish two kinds of sand inclusions caused by different reasons and how prevent sand inclusion by improving sand quality control and foundry method.
論述了鑄鐵件中兩種不同成因的砂眼的判別方法及如何從型砂品質(zhì)管理和工藝改進來防止砂眼的措施。
The reasons causing sand inclusion and slag inclusion are: ( 1 ) gaps between mould and core prints or cods too small;
前言：濕砂型鑄鐵件產(chǎn)生砂孔和渣孔缺陷的主要原因是：（1）芯頭或砂臺的間隙偏小；