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English words and Examples of Usage
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Sentences for "contamination "
People are suffering from the contamination of the water supply.
Used batteries are the main source of lead contamination in the world.
contemplate In 1957, nuclear wastes stored by the Soviet Union in a remote mountain region of the Urals exploded.
Radioactive contamination affected thousands of square miles, and several villages had to be permanently evacuated.
The contamination of the town of Chernobyl by the nuclear power plant there will take decades to clean up.
In 1957, nuclear wastes stored by the Soviet Union in a remote mountain region of the Urals exploded: radioactive contamination affected thousands of square miles, and several villages had to be permanently evacuated.
Dentists recommend that a toothbrush be kept at least 6 feet away from a toilet to avoid contamination by airborne particles resulting from the flush.
6), as owing to the greater depth of medium which it is possible to obtain in these flasks an exceedingly luxuriant growth is possible; the narrow neck reduces the chance of accidental contamination to a minimum and the general shape permits the flasks to be stacked one upon the other.
Toward the end of the series, however, discrete colonies will be found, each of which can be transferred to a fresh tube of nutrient medium without risk of contamination from the neighbouring colonies.
The nozzle is protected from accidental contamination by passing it through the cotton-wool plug of a small test-tube.
Prepare subcultivations from such flasks as show evidence of growth, to determine that no accidental contamination has taken place but that the organism originally spread on the film is responsible for the growth.
The use of a metal tripod, on the platform of which are soldered two small cups for the reception of the food, inside the cage, prevents waste of food or its contamination with excreta (Fig.
In the performance of the inoculation strict attention must be paid to asepsis, and suitable precautions adopted to guard against accidental contamination of the material to be introduced into the animal.
capacity, with narrow necks and overhanging glass stoppers (to prevent contamination of the bottle necks by falling dust).
capacity, its delivery tube protected against contamination by passing it through a cotton-wool plug into the interior of a small Erlenmeyer flask which serves to support the funnel.
A deep well that is closed in properly and does not permit of contamination from filth, does not insure a clean water supply if the trough or tank is not kept clean.
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