流式api有两种形式：推式和拉式。
There are two variations of stream API: the push and pull versions.
画出推式、拉式、先进先出的地方。
采用独家可推式模盘架，安全、高效、快捷；
Uses own may push the type to mold the frame, safe, highly effective, quickly.
所设计的齿条式推钢机使用状况良好。
The rack type pusher designed by Chongqing Steel is in good condition.
所设计的齿条式推钢机使用状况良好。
The rack type pusher designed by Chongqing Steel is in good condition.
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