1980年,科学家首次在从尘云中沉淀下来的全球范围的沉积层中识别出这种撞击,这些尘云在撞击后围绕着地球。
Scientists first identified this impact in 1980 from the worldwide layer of sediment deposited from the dust cloud that enveloped the planet after the impact.
在正常的水相中,残留的磷会自己移动,沉淀到海洋底部,并混合到海洋沉积物中。
In the normal water phase, the remaining Phosphorus makes its way, settles to the bottom of the ocean, and gets mixed into ocean sediments.
举例来说,1972年袭击了图瓦卢的飓风比比在东部礁岩上沉淀了140公顷的沉积碎屑,将主岛的面积扩大了10%。
For instance, when hurricane Bebe hit Tuvalu in 1972 it deposited 140 hectares of sedimentary debris onto the eastern reef, increasing the area of the main island by 10 per cent.
晚石炭纪,沉积岩(整块岩石经风、水的外力侵蚀,然后均匀沉淀而形成)广泛分布于那些有可能反复被洪水侵袭的地区;
During the Late Carboniferous, sedimentary rocks—rocks eroded by wind and water and deposited as fine sediments—carpeted much of the region, which might have been partially flooded from time to time.
沉积物岩心主要记录的是沉淀在海底沉积物,一层又一层,记录它们沉淀时的海洋系统状况。
Sediment cores are essentially a record of sediments that settled at the sea floor, layer by layer, and they record the conditions of the ocean system during the time they settled.
好奇号通过分析发现有泥石存在,这种岩石是由沉淀物微粒在一块平静的水域中沉积而成的。
Analysis by Curiosity revealed the presence of mudstone, a type of rock formed by fine grains of sediment settling out of a column of calm, still water.
采用共沉淀沉积法制备的催化剂对于二甲醚合成的活性明显高于机械混合法制备的催化剂。
The catalyst prepared by precipitation sedimentation method had a higher catalytic activity for DME synthesis than the catalyst prepared by mechanical mixing method.
当沉积土达容量的50%时,清理沉积泥土;当沉淀池排水不畅时,清理或替换砂砾;
Sedimentary soil shall be cleared when reaching 50% of the capacity. Sedimentation tank shall be cleaned or sand therein shall be replaced in case of drainage difficulty.
自然界岩石的层层沉积体现着时代的变迁,同样,曾经的丰功伟绩和事件也沉淀着丰富的历史。
As in nature, where you can understand the passage of time by studying the sedimentary layers of rock that lay below, history is layered on past achievements and events.
这些被工作人员称为“蓝莓”的小球,表现出是由沉淀物层层沉积而形成的显著迹象,就如同海洋中的珍珠。
The spherules, which the team called blueberries, showed clear signs of having been built up layer by layer within sediments, just like the pearls in our oceans.
沉积岩内颗粒之间的孔隙流体中沉淀的束缚物质。方解石和石英是常见的造胶结物矿物。
The binding material in sedimentary rocks that precipitates between grains from pore fluids. Calcite and quartz are common cement-forming minerals.
传统CRT投影管中荧光屏的制作,大都采用沉淀法在玻璃沉底上沉积一层荧光粉。
In the traditional CRT projection displays, the phosphor screen mostly is fabricated by depositing phosphor powder on the glass substrate.
在矿物或岩石的颗粒之间的胶结物沉淀过程,由此形成固态的碎屑沉积岩,为石化作用的一个阶段。
The process of precipitation of cement between mineral or rock grains and forming solid clastic sedimentary rock, one phase of lithification.
再生的磷可能释放到上覆水体中,或在沉积物中作为一种自生相而再沉淀,或被沉积物的其它组分所吸附。
The regenerated phosphate may be released to the overlying water and reprecipitated within the sediment as an authigenic phase, or adsorbed by other constituents of the sediments.
化学沉积岩可以是由溶液直接沉淀的物质形成,也可是由植物或动物活动分泌物质而形成。
Chemical rocks are formed from materials either directly precipitated from solution or secreted by the activities of plants or animals.
净化过程中沉淀下来的沉积物可以用作肥料。
The sediment which settles down in the purifying process is used as fertilizer.
用共沉淀法和沉积沉淀法可以制备高度分散的金负载氧化物催化剂。
Gold can be highly dispersed on metal oxides by coprecipitation and deposition-precipitation methods.
身体水分蒸发时,身体表面的细胞碎屑和空气里的沉淀物等微生物和其它分泌物会沉积到毛巾上。
When you wick moisture from your body, the microbes and other secretions such as cellular debris that live on the surface of your body get deposited onto your towel.
抗菌高流量滤芯提供第一层的过滤管道,有效过滤微细沉淀物例如:沙子,灰尘,悬浮物和沉积物中有害细菌。
The anti-bac filter provides the first level of filtration to remove microscopic sediments such as sand, dirt, suspended solids and harmful bacteria.
如果是一瓶很好的老酒,开瓶前一定要让葡萄酒竖直放置几个小时,让沉淀沉积到平底。
If you have a nice, old red, then stand it up for several hours to get the sediment to the bottom.
主要工作有化学沉积-共沉淀法制备钨延期药的研究、产品结构对点火能量影响研究和产品结构改进的研究。
The results show that all of the 3 kinds of nano-CuO can change the reacting processes of tungsten type delay composition.
主要工作有化学沉积-共沉淀法制备钨延期药的研究、产品结构对点火能量影响研究和产品结构改进的研究。
The results show that all of the 3 kinds of nano-CuO can change the reacting processes of tungsten type delay composition.
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