Micro marketing become the gold section of electronic commerce.
微营销成为电子商务的黄金地段。
White fused alumina products including section sand, grain-size sand; fine powder and micro powder are widely used in refractories, abrasives and other industries.
白刚玉段砂、粒度砂、细粉、微粉在耐火材料、磨料磨具等不同行业具有广泛的用途。
A kind of intelligence micro-tension control system has been studied to especially improve the control precision of tension between stands for complicated section continuous rolling.
为提高型钢尤其是复杂断面型钢连轧时机架间张力的控制精度，研究了一种智能化微张力控制系统。
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