stock velocity是什么意思

用法例句

In view of the difference between the pulp way and stamp-pad ink ofimported waste paper and those of waste paper in our country,the author has heen doing a series of experi-ment studies on imported waste paper,and discovered a prescription for producing chemicals which aresuitable .

作者认为:国产废纸日渐短缺,对进口废纸的脱墨研究已成为当务之急,鉴于进口废纸的制浆方法和印刷油墨与国产废纸的不同,作者进行了一系列试验研究,找出了适用的脱墨化学品的配方,并对影响脱墨的各种因素进行了必要的研究讨论。