Design a steel mid-plate to prevent objects from puncturing the sole.
防刺：设计有钢板，有效防止鞋底被刺穿。
It is difficult to see how the theory applies to the plate between the Mid-Atlantic Ridge and the ridge in the Indian Ocean.
很难看出这个理论如何适用于大西洋中脊和印度洋脊之间的板块。
From the view of national petrochemical industrial, the capacity, product quality, total staff, sale income of subsidiary of the chemical plate of Northern petroleum group lie at mid level.
从全国石化行业来看，北方石油集团化工板块下属企业在产能、产品质量、员工总数、销售收入等方面，均处于中游水平。
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