survey pin的意思|示意

This article introduced the double pin roll breaker's survey and the tooth profile and the roller tooth arrangement design situation analysis briefly.

介绍了双齿辊破碎机的概况和齿形与辊齿布置设计情况。

The Wells Fargo survey painted a more dire picture than most other polls, which typically pin the worst-case retirement age in the mid-to-late 60s.

相比以前其他的调研报告，富国银行的这份报告绘制了一幅更为悲惨的前景，就是需要把退休年龄定在65岁之后。