And diaphragm compared to single-screw pump can transport all kinds of mixed impurity containing gas and solid particles or fibers of the media, but also transport all kinds of corrosive substances.
和隔膜泵相比，单螺杆泵可输送各种混合杂质，含有气体及固体颗粒或纤维的介质，也可输送各种腐蚀性物质。
The purpose was to study the best printing solid density on secondary fibers newspaper, to realize the control of the image reappearance quality and improve secondary fibers newspaper's performance.
本课题的目的是寻找二次纤维新闻纸的最佳印刷实地密度的实验方法，实现对彩色报纸印刷品图像再现质量的控制。
The solid-phase microextraction conditions were further optimized by carefully selection of the fibers, the extraction time and the desorption time.
通过对固相微萃取的纤维头、萃取时间和解吸时间的选择来优化其实验条件。
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