How many moles of gas are there in each case, in reactants and products? If that changes, of course you know that the pressure in there is going to change at constant volume if the amount of gas in there is changing.

在反应物和生成物中，各有多少摩尔的气体？,如果它发生了变化,当然在等体条件下，如果气体的总量,发生了变化，压强也会发生变化。

麻省理工公开课 - 热力学与动力学课程节选

There's a diverse range of responses that might occur, but that response is initiated by this simple chemical process of a ligand binding to a receptor.

细胞对外界信号可能会发生不同的反应,但这些反应都源自,配体和受体结合这个简单的化学过程

耶鲁公开课 - 生物医学工程探索课程节选

That infection occurs because of a ligand receptor interaction on the cell surface where the virus itself is the ligand and it takes advantage of a receptor that's expressed on the cell surface.

感染的发生是由于,配体与细胞表面受体相互作用,病毒是配体,它利用了在,细胞表面表达的受体

耶鲁公开课 - 生物医学工程探索课程节选