求翻译：通过在建筑陶瓷胚体中掺加不同比列的尿素，分别制作试块，通过对各式快烧失量、体积密度、抗折强度、直径减小量、厚度减小量和真空吸水率的测定。来对比发现在建筑陶瓷胚体中添加尿素对其使用性能的影响，及最佳掺量的确定。是什么意思？

Urea in the building ceramics embryoid bodies mixed with different columns, respectively, to produce test block, through faster on all kinds of loss on ignition, bulk density, flexural strength, the diameter is reduced, the thickness is reduced and vacuum water absorption determination. To compare t

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Through mixes in the construction ceramics embryo body adds differently compared to a row urea, manufactures the briquette separately, through to various types quick loss on ignition, the bulk density, the anti-booklet intensity, the diameter reduces the quantity, thickness reduces the quantity and

By building ceramic embryo different than adding a column in the body of urea, making blocks, respectively, by all kinds of loss on ignition, flexural strength, diameter reduces bulk density, volume, thickness reduction and vacuum-determination of water absorption. Contrast found in building ceramic

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