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— An establishment where live cattle are transformed into meat.

— Air filter having an efficiency of 99.9% or higher and capable of dealing with particles sizes down to 0.01 micrometer.

— In a mixture of water vapour and dry air, the ratio of the mass of water vapour to the volume occupied by the mixture.

— The pressure referred to the perfect vacuum; it is the sum of gauge pressure and atmospheric pressure.

— Temperature as measured above absolute zero.

— A space totally void of matter.

— A point that can be theoretically attained when all intrinsic molecular activity completely ceases.

— That substance absorbed by an absorbent.

— A substance which has the ability of extracting some substances from a liquid or gaseous medium with which it is in contact.