1) Dualbell nozzle
双钟形喷管
2) Bell nozzle
钟形喷管
3) dual-bell nozzle
双钟型喷管
1.
By employing the gaseous oxygen as oxidizer and gaseous hydrogen as fuel,hot-firing tests were performed for aerospike nozzle and dual-bell nozzle test engines with altitude compensating features.
采用气氧作氧化剂、气氢作燃料,对具有高度补偿特性的塞式喷管和双钟型喷管进行了点火热试。
4) double bell-shape flexspline
双钟形柔轮
5) bell mouth
管头钟形口
6) spurting heavy oil with two reduction pipes
双管喷油
补充资料：端石钟形砚(清)
对文物价值而言，历史愈久者愈加珍贵，价格也随之高升，此类清末之器，价格当在一万元以上。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条