In addition, current commercial PDSN device of CDMA2000 using the IXP2400 tehcnology, so this pre-positive system gets a smooth porting property and have a brilliant way to the industrialization.

目前CDMA2000移动网的PDSN商用系统均采用IXP2400硬件平台，因此本文在IXP2400上开发的内容监管前置机系统具有很好的移植性，为项目的产业化扫清了障碍。

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Success is not a secret, it is a system - a positive belief system.

成功不是秘密，而是一个系统——一个积极的信仰系统。

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Cleaning up those unused people query results can have a positive impact on system performance.

清理这些不使用的人员查询结果会对系统性能产生积极影响。

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Delta v is positive in this direction here, the work is negative. So work on the system is positive. Work done by the system is negative.

功是负的，总而言之,外界对系统做功的符号为正。

麻省理工公开课 - 热力学与动力学课程节选

putting all those things together, if you looked at this question again we'd get 100% on it, 0 9 that our only option here is 0. 9, and that it's not the negative, it's the positive version, because we're talking about how much energy we have to put into the system in order to eject an electron.

把这些放在一起，你们再看一下题目,大家100%都能选对，我们唯一的选择就是这个，它不是负数，它是正的，因为我们说的，是要,把电子激发出来,需要提供的能量。

麻省理工公开课 - 化学原理课程节选

So you don't want to put in a negative energy, that's not going to help you out, you need to put in positive energy to get an electron out of the system. So that's why you'll find binding energies are always negative, and ionization energies are always going to be positive, or you could look at the equation and see it from there as well.

因为这对电离没有帮助,你需要一个正的能量,使得电子脱离这个系统,这就是为什么你会发现,结合能总是负的而电离能总是正的,或者你们看这个方程也可以发现这一点。

麻省理工公开课 - 化学原理课程节选

The FSA rejects the idea that it introduced the positive release system only in response to the crisis - it said it was going to happen anyway.

BBC: FSA delayed plans to test every horse before crisis

The agency did introduce a "positive release system" - meaning the horsemeat was released only when certified drug-free on 11 February, once the crisis over horsemeat in beef products had begun.

BBC: FSA delayed plans to test every horse before crisis

While this is usually framed as a negative consequence of the law, moving away from our employer system may actually have positive implications for the health care system and individuals.

FORBES: Employers Dropping Health Care Coverage Could Benefit Health Care Quality and Cost