“成弓形”造句

虹在天上成弓形.
The rainbow arches the heaven.

树的枝叶成弓形遮覆河上.
The trees arch over the river.

GDF40 - WY - 460型蝴蝶阀是一种新型蝴蝶阀,在结构设计和综合性能上有很多优点,其活门设计成弓形结构.
A new butterfly gate , GDF 40 - WY - 460, has many advantages over the structural design and comprehensive performances.

• #成弓形