nitrogen造句
31. As you surface, the pressure on your body fluids decreases and the nitrogen comes out of solution.
32. In the first experiment, dietary nitrogen was given in casein at four different protein values ranging from 5 to 16%.
33. Filtration At the present time there is considerable concern about concentrations of nitrogen compounds in water containing goldfish.
34. Global warming occurs when carbon dioxide and some other gases, such as methane and nitrogen oxides, accumulate in the atmosphere.
35. The new standards cut emissions of carbon monoxide, nitrogen oxides, gaseous hydrocarbons and particulate matter.
36. The fires produced 20,000 to 40,000 tonnes of sulphur dioxide as well as many thousands of tonnes of oxides of nitrogen.
37. Large explosions heat vast masses of the atmosphere to such high temperatures that nitrogen is partially burned to make toxic nitrogen oxides.
38. Pollutants such as nitrogen oxide, carbon monoxide and hydrocarbons have also been linked to hay fever, chest infection and childhood cancer.
39. An alternative source of nitrogen will be required to ensure a rapid buildup of bacteria and the complete breakdown of cellulose.
40. Apple trees require plenty of potash and nitrogen, especially if the area is grassed over.
41. Blood urea nitrogen, heart rate, and respiratory rate were not related to 2-year survival.
42. Global anthropogenic emission of oxides of nitrogen for 1980 were estimated at 75 million tonnes.
43. However, this statistic conceals that levels of nitrogen dioxide have changed little since 1983.
44. It was inflated with nitrogen gas within minutes and looked like a silver parachute.
45. On reflection, I think we made the nitrogen bands rather too wide.
46. After immersion in 40% glycerin solution at room temperature, they were placed on a copper stage and frozen with liquid nitrogen.
47. It is usually caused by the emission of particulates or nitrogen dioxide.
48. We can generalize from the samples and conclude that nitrogen levels have increased.
49. Nitrogen is rapidly lost but immediately available potassium, magnesium and calcium increase as input from the ash.
50. Scores of sewage plants along the Chesapeake's tributaries are disgorging nitrogen and phosphorus, natural products of biological sewage treatment.
51. These leguminous plants have the capacity to fix nitrogen from the atmosphere through their specialized root nodules.
52. The sulphur dioxide level in Belfast was 32 parts per billion while the nitrogen dioxide level was 48.
53. The Azollablue-green alga combination fixes atmospheric nitrogen and is widely used as fertilizer and as forage.
54. In addition,[http:///nitrogen.html] nitrogen from fertilisers washes into the bay from farms.
55. The gas is cleaned prior to burning and the sulphur dioxide and nitrogen dioxide, thought to contribute to acid rain, removed.
56. Does it complete the nitrogen cycle, ie. convert nitrate into nitrogen?
57. Both countries would also limit nitrogen oxide emissions through stricter controls on motor vehicles.
58. Reduction of nitrogen oxides from cars will need more expensive vehicles - or mean less use.
59. Nitrogen shortage normally shows out as small, sickly, pale green foliage.
60. Ash and biodegradable waste must be added regularly to achieve the right carbon nitrogen ratio.
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