蜗杆传动中，蜗杆和蜗轮的轴线一般在空间交错成（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='24894' and id < 2124491 and id<>'2124491' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24894' and id > 2124491 and id<>'2124491' order by id asc limit 5