This paper introduces control of motors by using frequency-transformer, which changes two kinds of speed(faster and slower) into gearless speed regulation.

采用变频器进行电动机控制，将原来只有快、慢两个速度的电动机变成了无级调速；

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Several changes have been made to the data types that JDBC supports and, as a part of the changes, two new data types have been added.

JDBC所支持的数据类型作了几个改变，其中之一是增加了两种新的数据类型。

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This release included a large number of changes-two in particular being the introduction of a new optimization framework (Tree SSA) and support for autovectorization.

这个发行版包含很多变化—其中两个特别的变化是引入了新的优化框架(Tree ssa)和支持自动向量化(autovectorization)。

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Doctor Ruhli says researchers used this method to study changes in the tuberculosis bacteria from two thousand year-old mummified tissue.

VOA: special.2010.06.29

But now, what happens if, instead we look at what happens when we go to some state one to some other state two and it's the pressure. Or the volume, that changes.

但是现在，我们看看如果,我们关系从状态一变化到状态二时,体积或者压强发生变化。

麻省理工公开课 - 热力学与动力学课程节选

Number three, pointer assignment, takes one pointer and changes it to point to the same pointee as another pointer so after the assignment the two pointers will point to the same pointee.

第三条，指针赋值，使一个指针,指向另外一个指针所指向的数据,赋值过后，两个指针会指向,同样的数据。

哈佛公开课 - 计算机科学课程节选

Nielsen hinted at changes two years ago when TV ownership dropped for the first time in decades, which may turn around since the new definition includes viewers with internet-connected TVs, and could go further to include viewers with just a tablet or laptop.

ENGADGET: Nielsen ratings expand definition of TV households to include internet-only viewers

"A vehicle can be used for 10 years, but technology changes every two years or less, " Desai said.

CNN: E-cars take to the streets

There were five lead changes and two more ties before the quarter ended with the score tied at 68.

NPR: Anthony Scores 40, Knicks Win 10th Straight