head of tender是什么意思

用法例句

Analysis of problems cause the main pump to lose effectiveness and some rehab measures;

国产液压牵引采煤机主泵失效分析与修复措施

Research on main pump testing technology of AM—500 shearer;

AM—500型采煤机主泵试验技术研究

Application of fuzzy control technique to the control of the main pumps in Ku-Shan crude oil pipeline;

模糊智能控制技术在库鄯线输油主泵控制中的应用

What the paper introduced is the key equipment of main pump motor used in nuclear power station.

介绍了核电站用主泵电机的关键设备。