paper spool 中文意思是什麼
paper spool
解釋
紙頁卷軸-
In this paper, the performance of a multi - spool axial - flow compressor with a fan during operation with water ingestion is investigated
本文主要研究了多級軸流風扇壓氣機在有水或者其它液相注入時的性能特性。 -
Abstract : in this paper, the characters of two kinds of urban structure, the concentric circles with single center and the spool thread with poly - centers, have been discussed
文摘:分析了兩種城市結構即單中心同心圓與多中心軸線式的特點。
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