“concentrations”造句，怎麼用concentrations造句

Our goal is to obtain an indicator that can gauge concentrations.

Fluoride occurs at elevated concentrations in many areas of the world including Africa, the Eastern Mediterranean and southern Asia.

These sources of water normally have much higher concentrations of radon than surface water from rivers, lakes and streams.

Men had higher concentrations of testosterone and cortisol than did women, both before and after the test.

Polymers are unusual solutes in that they take up relatively large volumes for nominally low molar concentrations thus influencing the behaviour of polymer solutions.

OSHA sets a minimum limit of 19.5% oxygen for work areas. Working in concentrations below this level requires use of a supplied air source.

During the nights, not only were the concentrations of ozone, nitrogen oxides and other gases measured by this plane, but also, almost as an afterthought, the intensity of the light from below.

The mound in question, dubbed Comanche Outcrop and visible near the top of the above image, appears to contain unusually high concentrations of elements such as magnesium iron carbonate.

What are the equilibrium concentrations?

Some phytoplankton can fix nitrogen and can grow in areas where nitrate concentrations are low.

Otherwise, high concentrations of isobutanol would inhibit the growth of the yeast.

Even if we, say, halve all carbon emissions today, it would not have an immediate effect on atmospheric CO2 concentrations.

To measure this, passengers were given glasses of water with seven different concentrations of colorless artificial flavorings, and asked to note at which level they registered a sensation.

Air pollution is normally defined as air that contains one or more chemicals in high enough concentrations to harm humans, other animals, vegetation, or materials. There are two major types of air pollutants

At high concentrations, it can cause significant acute disease with pulmonary edema, whereas chronic exposures at lower concentrations can lead to significant pulmonary fibrosis.

But the women uniformly had increased blood concentrations of acylated ghrelin and decreased concentrations of insulin after the sessions in which they had eaten less than they had burned.

Radioactive smoke landing on crops... even 150km or more from the fire can create such concentrations of radiation in food it will be harmful to eat.

This paper studies the different concentrations of GA_3 treatment on Rhododendron cosmopolitan impact of flowering.

The CAA added a 60 nautical-mile buffer zone imposed around high concentrations of ash in the skies was now close to Edinburgh, Carlisle, Blackpool, Liverpool and Manchester airports.

While both the butterfly and larva diets and tissues had high concentrations of polyunsaturated fatty acids, the larva had nearly three times more fat than the butterfly.