head block meaning in English

导滑车
吊货滑车
顶部滑车
尖轨长枕
前部垫块
送材车
头滑轮
头轮
辙尖枕木

The synergy n9 rotor head features composite blade grips and a cnc billet aluminum head block
协同n9旋翼头特点复合刀片枪柄和数控方坯铝头座
The synergy n9 rotor head features composite blade grips and a cnc billet aluminum head block
协同组合特征n9号转子叶片头部、网通抓紧铝头座坯
An approach to extract text information from heading block of the cad files for use of the sub - system and import them into database is proposed
论文详细研究了标题栏的结构特征和文字信息提取方法，介绍了标题栏信息存储的方法。
Under this kind of buffer , to assure different qos cells queue according to their service type . additionally using this kiand of buffer could solve head blocked , shape the output flow , enhance channel utilization and decrease the cost of atm switch
这种缓冲结构根据信元所属的服务类型排队，切实保障了不同类型服务的qos ，另外还能够解决头阻塞问题，缓和突发通信量，提高资源利用率，并且降低成本。