Nylon is a very ______ material.: ответ на тест 884613 - Английский язык

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When will nylon operate satisfactorily without lubrication?
A new material as nylon has been accepted. It is material for the manufacture of bearings and runners of all sizes in many types of machines, earth-moving equipment and agricultural machinery due to its fundamental characteristics of low friction and good wear resistance. Nylon is a very versatile material and is capable of overcoming a wide range of difficult problems. It will operate satisfactorily without lubrication in an abrasive atmosphere. One of its features is that nylon functions under water or is immersed in any other liquid. Being non-toxic nylon is frequently used in food machinery. Nylon gears usually do not require lubrication, they are shock-resistant, do not deform permanently and – running in train with metal gears – they outlast them.

A new material as nylon has been accepted. It is material for the manufacture of bearings and runners of all sizes in many types of machines, earth-moving equipment and agricultural machinery due to its fundamental characteristics of low friction and good wear resistance. Nylon is a very versatile material and is capable of overcoming a wide range of difficult problems. It will operate satisfactorily without lubrication in an abrasive atmosphere. One of its features is that nylon functions under water or is immersed in any other liquid. Being non-toxic nylon is frequently used in food machinery. Nylon gears usually do not require lubrication, they are shock-resistant, do not deform permanently and – running in train with metal gears – they outlast them.
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When will nylon operate satisfactorily without lubrication?

Buildings can _______ during an earthquake if their structural frames are not braced.

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Hydroponics is a method of growing plants using mineral nutrient solutions, in water, without …