半球头 meaning in English

snap head

Eventually the low - drag low - noise optimization of the vehicle main form design is realized . the optimization results and analyse are provided , the results calculated theoretically and the results from the wind tunnel test are compared . the results proves that the optimization is effective , the theory and the technique used in optimization of the underwater vehicle main form design are credible
将低阻优化外形和半球头原始外形、理论计算结果和风洞实验结果分别进行了比较，结果证明本文航行器主体外形优化设计取得了明显的效果，也验证了航行器主体外形优化设计所采用的理论和方法是准确可靠的。