非化学计量的缺陷常常出现在过渡金属的化合物中。

Non-stoichiometric defects often occur in transition-metal compounds.

youdao

在这个反应中，发现了三氟乙醇和亚化学计量的芳香族硫醇。

In this reaction, it was found that trifluoroethanol and substoichiometric amounts of an aromatic thiol.

youdao

气体燃烧器使燃料和夹带的空气完全混合，以便在燃 烧之前形成几乎化学计量的混合物。

The gas burner throughly mixes fuel and entrained air to form a nearly stoichiometric mixture prior to combustion.

youdao

Right? In other words I've got the stoichiometric coefficients in there and the values, and I'm subtracting the reactants from products -1652kJ/mol wind up with minus 1652 kilojoules per mole.

对吧？换句话说这里我用了化学,计量系数和生成热的值，从生成物中减去反应物,最后得到。

麻省理工公开课 - 热力学与动力学课程节选

What I am going to do next day is go into the larger stoichiometry and understand the principles of mass balance and reactivity But before you go,hold it,I don't want you racing off.

下堂课我要做的是,讨论化学计量学，和,质量平衡很反应定律,但在下课之前，我不希望你们这么快走。

麻省理工公开课 - 固态化学导论课程节选