Вопрос № 911725 - Английский язык

It is noted that a suspension, which is another kind of liquid mixture, greatly differs from a solution. A suspension may be demonstrated by placing some sand in a glass of water and then stirring the mixture violently for a moment. If this is done, the two substances mix but no solution is effected. The particles of sand, being larger than any of particles of the true solution, mix for a while, but since they move about less freely, they finally settle on the bottom when agitation of the mixture ceases.
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It is noted that a suspension …

It is noted that a suspension, which is another kind of liquid mixture, greatly differs from a solution. A suspension may be demonstrated by placing some sand in a glass of water and then stirring the mixture violently for a moment. If this is done, the two substances mix but no solution is effected. The particles of sand, being larger than any of particles of the true solution, mix for a while, but since they move about less freely, they finally settle on the bottom when agitation of the mixture ceases.
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According to their resistivity, conductors are divided into two groups; the first includes materials with low resistivity: copper, aluminium and others. These metals are used to produce wire conductors due to their high mechanical strength. The second group includes materials with high resistivity: one of these is nichrome. Due to its good heat resistance, nichrome is used to produce heaters. Carbon is commonly used to produce electrodes and brushes for electric machines.
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Nichrome is used to produce …

Заполните пропуски в инструкции следующими словами:
1) Don’t touch the 1_______!
2) 2_______! The guard is open. Close it.
3) Don’t 3_______ wires which are broken.
4) Pipes that are blocked should not be joined to the 4_______.

Заполните пропуски в инструкции следующими словами:
1) Do not use 1_______ which are coiled.
2) 2_______ the pipe.
3) Press the switch to the left of the 3_______.
4) To pump 4_______ into a tyre, you should use a foot pump.

Заполните пропуски в инструкции следующими словами:
1) A gauge should be used for 1_______ tyre pressures.
2) If you want to raise a car, a jack should be used, not 2_______.
3) Don’t run 3_______!
4) To tighten and 4_______ nuts and bolts you should use a wrench.