Acetylene is a simple asphyxiant and anesthetic.

乙炔是简单的窒息物和麻醉剂。

Nitrogen is a simple asphyxiant and considered nontoxic.

氮仅仅是窒息剂，认为是无毒的。

Simple Asphyxiant - This product does not contain oxygen and may cause asphyxia if released in a confined area.

单纯窒息剂----该产品不含氧，因此如果在相对封闭的空间中发生泄漏可能引起窒息。

The oxygen consumption rate(OCR) and the effect of body weight on the asphyxiant point(AP) of Hemibarbus maculatus Bleeker were studied.

实验测定了花的耗氧率和窒息点，并对耗氧率的昼夜变化规律以及体重对其窒息点的影响进行了研究。

Under the same water temperature, the oxygen consumption rate and the asphyxiant point decreased as the body weight of the crayfish increased.

在大小相近的个体中，单位体重的耗氧率和窒息点随温度的升高而增加。