What we know is the boundary line and the sea border.

我们知道的就是我们的界线，还有海际。

MimeEnd , which returns the complete mime end boundary line.

mimeEnd，它返回完整的mime端边界行。

BoundaryLine , which returns the complete MIME boundary line.

boundaryLine，它返回完整的MIME边界行。

A river forms the boundary line between the two countries.

河流形成了两国的边界。

On this basis, the surge boundary line of the compressor was determined.

在此基础上，确定了压气机的喘振边界线。