The best reaction process conditions as proportion of reacting substance and reaction time, which affected the production rate, were examined.

用红外分光光度计对合成产物进行结构表征，并分析合成反应机理。

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Method Orthogonal design is used to determine the relation of the amount as well as proportion of hydroxypropyl methylcellulose and Carbopol with in vitro release and adhesive force of the tablets.

方法采用正交设计方法，确定生物粘附材料羟丙甲纤维素、卡波姆的用量及配比与制剂体外释放度及粘附力的关系。

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The Newsweek list of top U.S. high schools was made this year, as in years past, according to a single metric, the proportion of students taking college-level exams.

和往年一样，《新闻周刊》今年的美国顶尖高中排行榜是根据参加大学水平考试的学生比例这一单一指标编制的。

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"because the virus can spread rapidly, but what we're seeing so far is a pretty stable position as far as the virus is concerned, it's producing relatively mild illness in most people, but in a small proportion it's causing serious problems and we have in place the plans in our health care system to deal with those problems,".

VOA: standard.2009.07.31

GDP Furthermore, Reagan reduced spending as a proportion of gross domestic product and Clinton reduced it even further You have a bipartisan achievement which alas in the current circumstances it slips.

另外，里根根据,按比例削减了政府开支,到克林顿执政时，开支进一步减少了,这是两党共同努力的结果,不过可惜如今已不复存在了。

斯坦福公开课 - 经济学课程节选

And, in fact, the proportion as you go from rat, cat, and monkey, humans— less and less of it is devoted to projection areas and there is more and more to other things.

事实上你可以看到,从老鼠开始,到猫,到猴子,再到人类,投射区所占的面积越来越少,而负责其他功能的皮层,所占面积则越来越大

耶鲁公开课 - 心理学导论课程节选

He said health spending should double as a proportion of GDP between 2003 and 2013 and that by the mid-2020s the cost, as a proportion of GDP, would vary between 12.5% and 10.6%.

BBC: Health Bill: Where's the strategic argument?

Netflix is not a capital intensive company when compared to peers and with its focus shifting to streaming, we expect its capital requirements to decrease as a proportion of revenues going forward as more subscribers adopt streaming plans.

FORBES: Netflix Has Appeal As A Defensive Play In A Slowing Economy

In 2008-2010, the prepaid phone market grew as a proportion of the overall handset market as many consumers opted out of long-term contracts that carried a fixed monthly plan.

FORBES: LEAP Soars, PCS Dives - Both Face a Tough Winter