Texting is perhaps the most effective means of mass communication in Pakistan: two of every three Pakistanis have a mobile phone and the cost of sending an SMS is among the cheapest in the world.

在巴基斯坦，短信也许是大范围交流的最有效方式：三分之二的巴基斯坦人拥有一部手机，而且短信的费用在全世界都是最便宜的。

youdao

The amount of energy that a flywheel will store for a given change in speed depends on its inertia, which, in turn, depends on its mass and its effective diameter.

由于速度的特定变化飞轮存储的能量大小取决于其惯性，其惯性反过来取决于飞轮的质量与有效直径。

youdao

Exercise was more effective in subjects with initially high total cholesterol levels or low body mass index.

在初始的高总胆固醇水平或低体重指数的受试者中这种训练更为有效。

youdao

Again, your common sense tells you, "Look, you are pulling something whose effective mass seems to be 5, the answer is 2."

你的常识会又一次告诉你,"你在拉一个相当于 5 千克的物体,所以加速度是 2 "

耶鲁公开课 - 基础物理课程节选

Until recently, the hurdle to fully leverage content assets has been the lack of an effective mechanism for mass.

FORBES: For Politicians, Some Lessons From Brand Marketing

"In all of pandemic planning it has been recognized for some time that cancellation of mass gatherings is not an effective way to control influenza, " Gustafson said.

CNN: Canada's Olympic-sized plan to fight H1N1

Oh, sure -- this has certainly been tried before, but given that things like this need a critical mass of followers to be effective, we're particularly jazzed about Google's own initiative.

ENGADGET: blogger-avatar