The release said an interstage ring is a key component in a multistage rocket, and that those used on China's current rockets were made in sections before being assembled.
发布会表示，级间环是多级火箭的关键组成部分，而用在中国现有火箭上的级间环以往都是分开制造，最后组装的。
Further, each of the side members and end cross members preferably has a section of a roller path and section of a ring gear attached to them while being transported and assembled.
此外，在进行运送和装配时每一个所述侧梁构件和所述端部横梁构件最好具有连到它们的滚柱道部分和环形齿轮部分。
The arm lifting belt is connected with the arm lifting ring and can be assembled, disassembled and adjusted arbitrarily.
吊臂带与吊臂带环连接，可随意装卸调整。
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