The invention relates to a concrete maintenance material and a preparation method thereof.

本发明涉及一种混凝土养护材料及其制备方法。

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The result shows the method provide an accurate and rational method to predict consumption of chemical defense maintenance material.

预测结果表明：该方法为准确预测防化装备维修器材消耗量提供了一种较为可行的科学方法。

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It introduces the conception of the business process modeling and the essential method of the arming maintenance material business process modeling.

介绍了业务流程建模的基本概念，以及装备维修器材业务流程建模的基本方法。

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In addition to purchasing the land, the trust said the money would also be used to create paths, open up views of the river and produce interpretation material, as well as fund ongoing maintenance.

BBC: Darwin's Shropshire garden offered for sale to trust