Chemical technology
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Exercises  |Упражнения

 

Chemical technology-D

Лексико-грамматические единицы

Грамматическая тема

 

Пример употребления в предложении

despite

несмотря на;

вопреки;

 

Prepositions: Предлоги 

Despite regulations limiting the use of chemicals and proven efficacy of using supercritical fluids as extractants, conventional solvent extraction still remains the leading technique to provide algae derived compounds for cosmetic or food industry.

 

didn't

не сделал;

The verb contraction did not: разг. = did not

Testing in mice showed that tattoos created with these nanoparticles didn't cause inflammation and lasted for three months.

 

do

делать;

выполнять;

действовать;

 

The auxiliary verb do: Вспомогательный глагол

In anoxic conditions, both ammonia- and nitrite-oxidizing bacteria are able to produce N2O, while only ammonia-oxidizing bacteria do it in aerobic conditions.

does

делает;

 

The auxiliary verb - the third person  singular present of do: Вспомогательный глагол; третье лицо единственного числа настоящего от do.

Nickel alloy shows better resistance to elongation than does zinc.

doesn't

не;

The verb contraction does not: сокращение, разг. =does not

The gold, in a similar way that silver, when used in reasonable amounts, doesn’t negatively affect the human body.

don't

не;

The verb contractiondo not: сокращение

разг. = do not

Different solvents don't extract similar kind of natural compounds with same concentration and consequently don't show biological activities with same potential.

 

down

вниз;

внизу;

нисходящий;

 

1.Prepositions: Предлоги

2.The Adjective: Имя прилагательное.

A laboratory should take care to prevent gas from escaping down a drain or up a fume hood.

during

в течение;

во время;

в процессе;

в продолжение;

 

Prepositions: Предлоги 

Nowadays, only around 35–45% of the energy contained in the raw wastewater, as organic compounds, is converted into CH4 during anaerobic digestion of primary and secondary sludge.