Structural fire precaution against smoke district and building structure;

建筑防火防烟分区和建筑构造；

Equipment is always carefully sterilized as a precaution against infection.

仪器设备总是经过仔细消毒以防感染。

Equipment tis always carefully sterilized as a precaution against infection.

仪器设备总是经过仔细消毒以防感染。

They took heavy coats as a precaution against the possibility of cold weather.

他们携带厚重的外套，以预防冷天来袭。

The fox finds a morsel and buries it, a precaution against an unpredictable future.

狐狸发现了一些食物并埋了起来，这是对不可预测的未来的一种防备。