spiral head meaning in English

分度头
螺旋头

Adopting compound spiral head , effectively eliminating material memory function
采用复合螺旋形机头，有效清除材料记忆功能。
Following with the condensing of chromatin , nucle us gradually elongates and spires . a large number of vesicles turn into glycogen granules behind mitochondria . the mature typical sperm of cipangopaludina chinensis , having monoflagella , consists of a spiral head with only one spiral buddle conformed of nucleus , a spiral middle piece with four s
中国圆田螺成熟典型精子单鞭毛，由头、中、尾三段构成：头段螺旋状，旋束由细胞核构成，仅单股；中段也呈螺旋状，旋束由线粒体构成，共四股；尾段非螺旋状，主要由糖原颗粒构成。