The Noachian era is believed to have had significant water activity.

据信诺亚纪时期有大量的水活动。

The range of water activity levels in foods is quite large. This table shows that water activity is a selective parameter that determines which microbes will grow.

食品中水分活度的范围相当宽。该表说明，水分活度是决定哪些微生物将在其中生长的选择性参数。

A numerical procedure is used to calculate the water activity for nonlinear isotherm equations.

利用等温水份线的直线公式和史密斯公式,虽然可以直接求得预测值,但误差偏大.

Scientists believe water activity affected this plateau after the formation of the nearby canyons. Although the source of water and sediment remains uncertain.

科学家相信，在附近峡谷形成之前这片高原受到过水的影响，虽然水源和泥沙的问题仍不明朗。

The effect of water activity on growth of microorganisms, lipid oxidation, enzyme activity, food texture as well as protein and vitamins were also discussed.

讨论了水分活度对微生物生长、食品中油脂的氧化、酶活力、食品的质构、食品中蛋白质和维生素的影响。

The condensation dew point method is a high-precision detection method of water activity in foods, and temperature control is one of the key technologies of the method.

冷凝露点法是一种高精度的食品水分活度检测方法，温度控制是其关键技术之一。