The flour should be fermented for I5 to 20 hours at a certain temperature.

面粉应在一定温度下发酵15到20小时。

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These two chemicals interact with each other at a certain temperature.

这两种化学物质在一定的温度下相互作用。

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Temperature coefficient of capacitance at a certain temperature rang is small.

一定温度范围内电容量温度系数小。

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And you can find these compressibility factors in tables. If you want to know the compressibility factors for water, for steam, at a certain pressure and temperature, you go to a table and you find it.

各种气体的压缩系数,想知道水或者水蒸气,在某个温度和压强下的，压缩系数，查表就行了，这是实际气体状态方程的。

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In an oxygen-free (anaerobic) environment at a certain temperature, pH and salinity, the bacteria can produce a toxin that in very small amounts can cause life-threatening paralysis.

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The archivists will keep the room at a temperature between 16C and 19C, and aim for a certain level of humidity, figures which meet a British regulation established by archivists, for archivists.

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