Planning sand extraction scheme in accordance with potential channel change and combining channelmodification with sand extraction can improve navigation condition to a certain extent.
The modification is an effective channel for improving of the eutectic carbide shape and distribution, and enlarging the application of the cast HSS.
变质处理是改善共晶碳化物形态和分布,扩大铸造高速钢应用的有效途径。
3
This essay USES marketing theories to analyze Corporation a's sales channel management status and the measures taken, and make some proposals for further modification.