Chinese Version(中文版)
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EBooks(电子书)
Biplanes
[baipleinz]
Examples
The
only
American
machines
besides
the
Wrights’
biplanes
which
have
made
a
name
for
themselves
are
the
Curtiss
biplanes
.
Rupert S. Holland.
Historic Inventions
.
Checked by Ida
