English Version(英文版)
|
EBooks(电子书)
Sid
[sid]
例句:
For
example
,
the
sid
e
of
a
hexagon
inscribed
in
a
circle
is
equal
to
the
radius
,
and
is
the
chord
of
60°,
or
of
the
sixth
part
of
the
circle
.
李贝.
西洋科学史
.
安德烈整理
