这其中包括Opera Turbo, Opera公司的这一压缩技术会可以让低速连接下的网络浏览变的可以忍受。此外还包括可视化标签,一个更智能的拼写检查器,以及一个更快的渲染引擎。
These include Opera Turbo, the company's compression technology that makes surfing on slower connections more bearable, visual tabs, a smarter spell checker, and a faster rendering engine.
So if delta v is negative, in this case delta v is negative, OK, delta v is negative, pressure is a positive number, negative times negative is positive, work is greater than zero.
也就是当活塞,压缩气体的时候,做的功是正的,按照这一规定,我们需要在这里,加上一个负号,这是习惯规定。
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