If it's a reversible process then the equality holds, but if it's irreversible, which means it happens spontaneously, t then ds is greater than this.

对于可逆过程，等号成立，但是如果是不可逆过程，这些不可逆过程是自发进行的，那么dS大于dq除以。

youdao

We saw that in general dS is greater than T or equal to dq over T.

我们发现一般来说dS大于,或者等于dq除以。

youdao

So then, just like we saw, analogous to what saw just before, dS/dp it's T dS/dp at constant T.

就像我们看到的,就像我们刚才看到的一样，结果是T乘以恒定温度下的。

麻省理工公开课 - 热力学与动力学课程节选

SdT This has minus T dS minus S dT, but the dT part is zero because we're at constant temperature.

这一项包含负的Tds和，但是dT的部分等于零,因为温度为常数。

麻省理工公开课 - 热力学与动力学课程节选

TdS It comes from the fact that dq reversible is T dS, pdV and dw reversible is minus p dV.

这个结论来自于：可逆过程下dq等于，做功dw等负的。

麻省理工公开课 - 热力学与动力学课程节选

Fortunately, the devices are still compatible with normal DS games from outside China, though normal DS devices can't play games released by iQue.

ENGADGET: China's complicated history with video games: when a ban isn't really a ban

Iwata expects the Revoltuion to help people make unique content like the DS. He hasn't hinted at what exactly will allow that to happen.

ENGADGET: & Joystiq's live coverage of Nintendo's Revolution E3 event

Since none of the five PCs we own has two VGA-out video ports (and we couldn't be bothered to track down a DVI adapter), we ended up hooking the DS-1500 up to both of our Media Center PCs.

ENGADGET: Review of the DoubleSight DS-1500