细纱机的罗拉座与水平面成一定的倾斜角,目的是减少须条在前罗拉上的包围弧,有利于捻回向上传递。
参考答案:对
根据提示词定出恰当的问句或答语,完成对话。
1. A: _____? (your city)
B: Cool clothing is the best.
2. A: _____? (Jeans Corner, your school)
B: Ten minutes by bus.
3. A:_____? (think, China)
B: Ge You is the funniest actor.
4. A: What do you think about the TV show?
B: _____? (boring; all)
5. A: Why do you think Guangming Theater is the best?
B: _____. (comfortable seats)
简述环境、生态环境和生境的区别与联系。