Is the double bottom block built on pin jigs?
双层底分段是在胎架上造的吗？
Callout with border line and pointer at bottom of text block.
位于文本块底部带边框线和指针的标注。
The bottom of the block is covered with an oil pan or oil sump.
缸体的顶部是气缸盖，它组成了燃烧室，缸体底部是油底壳。
The bottom of the block is covered with an oil pan or oil sump.
缸体的顶部是气缸盖，它组成了燃烧室，缸体底部是油底壳。
应用推荐