Am 19.01.2013 um 15:56 schrieb 土卜皿 <pengcz.nwpu@gmail.com>:

> hi, Wolfgang
>    thank you!
>    The source in attachment!

I would try to avoid mixing simplefonts and zhfonts because it could lead to problems.

You can now try a simplefonts only solution and look if the weird spacing disappears,
when the problem remains you should change the font because when I use your example
with “MS Mincho” or “Adobe Song Std” the spacing is better.

\usemodule[simplefonts]

%\definefontfeature[default][default][onum=yes,pnum=yes]

\setmainfont[TeX Gyre Pagella] % Monaco
\setsansfont[TeX Gyre Heros]
\setmonofont[TeX Gyre Cursor]  % Monaco

\setcjkmainfont[Fang Song]
\setcjkmonofont[Fang Song]

\setupbodyfont[9pt]

\setscript[hanzi]

\starttext
无线传感网络存在分布的跨区域性，随着无线传。

English font is no problem!
\stoptext

Wolfgang
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