此外,河流筑坝等工程也增加了沉积物的产量,更不用说大气中二氧化碳和甲烷的增加。
Also, things like the damming of rivers has caused increased sediment production, not to mention the addition of more carbon dioxide and methane in the atmosphere.
地质学家杰拉德·邦德注意到,一些沉积物颗粒被氧化铁染色,这表明它们起源于冰川覆盖红砂岩露头的地方。
Geologist Gerard Bond noticed that some of the sediment grains were stained with iron oxide, evidence that they originated in locales where glaciers had overrun outcrops of red sandstone.
红、赭、粉等颜色来自三叠纪干燥期缓慢形成的沉积物,在足够长的时间里,侵蚀与氧化作用创造出这种奇迹。
The reds, ochres and pinks hail from the much slower deposition during the Triassic's dryer periods, when erosion and oxidation had time to work their magic.
沉积物中细菌对这一部分物质的分解极大影响着大气二氧化碳。
The breakdown of a portion of this matter by bacteria in the sediment contributes significantly to atmospheric carbon dioxide.
瑞典研究人员发现沉积物对碳的截留作用对温度变化极其敏感,气候一变暖,大气中二氧化碳的排放量就会增加。
Swedish researchers have shown that carbon retention by sediment is highly temperature-sensitive and that a warmer climate would result in increased carbon dioxide emissions to the atmosphere.
一部分仍沉睡于沉积物中,间或达几千年,而其余的大部分则分解为二氧化碳和甲烷,释放到大气中。
A portion remains in the sediment, sometimes for thousands of years, while the rest is largely broken down to carbon dioxide and methane, which are released into the atmosphere.
极佳的氧化稳定性和清洗性能,能有效的减少漆膜、沉积物和积碳产生。
Excellent oxidation stability and cleaning performance, can effectively reduce the paint film, sediment and carbon produce.
在比较高的温度下,自动变速器油燃烧,导致它失去润滑性能并氧化,致使在整个变速器里留下沉积物。
At higher temperature the transmission fluid burns loosing its lubricating qualities and becomes oxidized leaving deposits all over inside the transmission.
过去冰河时代发生的部分原因在于在几百万年的时间里,石头的风化吸收了大气中的二氧化碳,然后以沉积物的形式把这些二氧化碳固定在海底。
Past glacial ages occurred partly because the weathering of rocks, over millions of years, pulls CO2 from the atmosphere, locking it in ocean floor sediment.
油液氧化形成胶状沉积物,易堵塞滤油器和液压阀内的小孔,使液压系统不能正常工作。
The fat liquor oxidation forms the porodine deposit, easy to stop up in the oil filter and hydraulic valve's eyelet, enables the hydraulic system the normal work.
添加剂对两种基础油氧化安定性有不同的影响,但会导致沉积物增多。
Additives have different effects on oxidation stability and can result in more deposit.
热氧化和热裂解过程中沉积物的生成是影响燃料安定性的重要因素。
The formation of deposits, which caused by thermal oxidation and thermal cracking, was the main factor on the stability of fuel.
优异的清净分散性、低温启动性、粘温性能及氧化安定性,有效控制发动机油泥和活塞环沉积物。
Excellent dispersion of clean, low temperature start, and viscosity-temperature properties and oxidation stability, effective control of engine oil sludge and piston deposits.
文中还讨论了该海域沉积物氧化还原电位的控制机理。
The controlling mechanism of REDOX potential with the sediment was discussed in addition.
甲酸能有效地溶解和去除钙质沉积物,包括锈、水垢和氧化铁沉积物。
Formic acid efficiently dissolves and removes calcium based deposits, as well as rust, scale and iron oxide deposits.
对沉积物中孔隙水营养盐浓度随深度的变化分析,表明了沉积物孔隙水中营养盐浓度变化与氧化还原环境的关系。
Analysis of change of the nutrient concentration in porewater with depth indicates the relation between the oxidative-reductive conditions and the nutrient concentration.
通过对丁字湾海域沉积物氧化还原参数的测定,得出该海域沉积物主要呈还原态。
The redox parameters in the sediment of T-shaped Bay on Shandong Peninsula were determined and it was found that the sediment showed mainly reducing form.
重铬酸钾—硫酸亚铁法主要难题是在计算时无法知道沉积物中有机碳的氧化数,因而所测值不够准确。
Its result has to be colibrated. Because the structure of organic substances is complicated, the number of oxidation valence of carbon is assumed zero when calculating organic carbon.
过氧化物酶、多酚氧化酶和过氧化氢酶活性与沉积物有机质均呈极显著正相关。
Activity of catalase, polyphenol oxidase and peroxidase tendenced similarly in lake sediments, and there was a significantly positive correlation between oxidoreductase and hydrolase.
过氧化物酶、多酚氧化酶和过氧化氢酶活性与沉积物有机质均呈极显著正相关。
Activity of catalase, polyphenol oxidase and peroxidase tendenced similarly in lake sediments, and there was a significantly positive correlation between oxidoreductase and hydrolase.
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