And many have. Yet now comes a study showing an increase in the number of injuries in "phys ed" class.

VOA: special.2009.08.06

They both proliferate, increase in number, and they differentiate; they differentiate from immature B-cells into antibody producing cells.

淋巴细胞将迅速增殖,数量大幅提高,同时发生分化,幼B淋巴细胞分化,形成能够分泌抗体的细胞

耶鲁公开课 - 生物医学工程探索课程节选

Intensity, if we increase the intensity, we're not increasing the energy in each photon, we're just increasing the number of photons that we're shooting out of our laser, whatever our light source is.

强度，如果我们增加强度，我们增加的不是,每个光子的能量，我们增加的仅仅是,从我们激光源射出的光子数，无论我们的光源是什么。

麻省理工公开课 - 化学原理课程节选

The study found a sixty-three percent increase in the number of people treated for rock climbing injuries in American hospitals.

VOA: special.2009.12.09

The return, of course, in any given time period is the percentage increase in the portfolio; or, it could be a negative number, it could be a decrease.

当然了，收益率是一定时间内,投资组合的增长率;,也可能是一个负数，表示负增长。

耶鲁公开课 - 金融市场课程节选

The main reason is the increase in the number of visitors to the islands.

VOA: special.2009.12.16

One of the interesting properties of cells that are in exponential growth is that the time to increase the cell number by a factor of 2 is always the same.

细胞有一个有趣的性质,那就是在指数增长阶段,细胞增长的速度,永远是以二为底数来增长的

耶鲁公开课 - 生物医学工程探索课程节选

Over the past year, groups that care for homeless people have seen an increase in the number of people in need because of the nation's economic crisis.

VOA: special.2009.01.28

The president is considering several options for his revised Afghanistan strategy, including a substantial increase in the number of troops deployed.

VOA: standard.2009.10.26

Watkins says there also has been an increase in the number and gravity of attacks against international aid organizations.

VOA: standard.2009.08.07

Dr.Bustreo says even better, India has seen a 75 percent increase in the number of women going to a birthing facility.

VOA: standard.2010.05.11

The clinic has seen an increase in the number of people with multi-drug-resistant tuberculosis or MDR TB.

VOA: standard.2010.07.12

It is an issue where we need to take concrete action to increase the number of women in politics and especially at decision-making levels in politics,".

VOA: standard.2009.04.05

We must now start with solidarity for our side, which does not end in workshops and conferences, but ends in action geared specifically to increase the number of women in politics and in our delegations,".

VOA: standard.2009.04.05

"If you look at the large studies, that were published over the last several years, including a large number of patients comparing Avandia to a placebo or other drugs, there was actually no increase in that risk.

VOA: standard.2010.03.02