A kind of optimization containing step function in coefficient is studied in this paper.
研究了一类系统含阶梯函数的优化问题。
No one may walk down the street carrying a paper bag containing a violin.
不可提着装着小提琴的纸袋走在街上。
Mechanical paper: Any paper containing a proportion of mechanical wood pulp.
机械木浆纸：含有相当比例的机械木浆的纸。
Currently, the manifest is a paper document containing multiple copies of a single form.
目前，体现的是一份文件，文件中含有多个拷贝的单一形式。
Mechanical paper: Any paper containing a proportion of mechanical wood pulp.
精磨木浆：把木片经精磨而造成的纸浆。
Mechanical paper: Any paper containing a proportion of mechanical wood pulp.
精磨木浆：把木片经精磨而造成的纸浆。
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