In this paper low-frequency vibration problems of rotating machinery are investigated.

应用时频分析方法研究了回转机械低频振动问题。

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In this paper, low ash content anthracite was taken as the investigated subject, thermolysis process of anthracite and petroleum coke were investigated at the same time.

本文以低灰无烟煤为研究对象，对无烟煤和石油焦的热解进行了考察。

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In this paper, low mature mudstone and limestone from Carboniferous System in Tarim Basin have been studied by the thermal simulating experiment.

对塔里木盆地石炭系低成熟的泥岩和灰岩生油岩进行了热模拟实验研究。

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They put it in a pretty low impact paper.

他们把它发表在一个影响力很低的杂志上。

麻省理工公开课 - 化学原理课程节选

In addition, in terms of conveying content, we prepared a notebook, where we had all the teaching materials that Professor Low used in this lecture on paper.

另外，从传递信息而言，我们准备了一个笔记本，其中包括Low教授课上,用到的所有教学资料。

麻省理工公开课 - 媒体、教育、市场课程节选

Today's dividend yield is uncompetitive with municipal paper and low-grade corporates and is subject to cutbacks like GE's.

FORBES: Risks Skewered To The Downside

All of them got into trouble with their investment portfolios last year, particularly in commercial real estate, mortgage paper and low-grade corporate bonds.

FORBES: Magazine Article

Just over a year later I came across that scribbled piece of paper and low and behold I had achieved eight of the ten goals.

FORBES: What's In Store For 2013?