The justification for omission of the impact properties shall be based on the most adverse possible combination of all elements of the steel grade specification, such as.
判定冲击性能否豁免应根据最严厉的工况，还要考虑材料规范中的元素对材料的影响，例如。
On the basis of the visual variables of map symbol and the represent grade of map elements, this paper introduces the inference model of point symbol design in map design Expert System.
本文以地图符号的视觉变量和地图要素的表示等级为依据，详细介绍了地图设计专家系统中点状符号设计的推理模型。
The formula of sintering ore burden is essential to raising its grade and to reducing the harmful elements.
烧结矿的配比对提高烧结矿的品位和降低有害元素的含量至关重要。
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