Being stable in air at ordinary temperature, mercury combines with oxygen if heated.

虽然常温下水银在空气中是稳定的，但给它加热的话，就与氧化合。

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VK_1 is stable in air, moisture and dilute acid but it is very easily decomposable when exposed to light.

它在空气、湿气和稀酸中较稳定，但遇光极易分解。

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Methods To detect the time consumed before frequency becoming stable in air and in solution under different temperature. And the time varied with the change of temperature.

方法在传感器体系中，于不同温度条件下测定空白芯片、已包被芯片在气相中和液相中频率达到稳定的时间，和抗原抗体反应时间随温度变化量。

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Lisbon, Portugal, which is located in the path of the Gulf Stream, averages the most daily hours of sunlight year-round thanks to its dry air and stable climate (much like southern California in the U.S.).

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For instance, clouds rising in the troposphere, the lower level of the atmosphere where air mixes freely, will bump up against the boundary of the much more stable stratosphere, forming ripples in the process.

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