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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
canadansis) and 22-year-old black locust on sandy sites along the Chaobai River in Beijing.
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Regularities of wind-erosion of different land-use types in Yongding River sandy land, Beijing
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The threshold wind velocity of a number of variables was studied in four different land-use types: farm land, forestland, wild grassland and a flood plain in the Yongding River sandy land in Beijing.
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Carbon storage of artificial forests in rehabilitated lands in the upper reaches of the Yellow River
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We studied 10-to 27-year-old artificial forests on rehabilitated lands in the upper reaches of the Yellow River with the objective of comparing the carbon densities of various artificial and natural forests.
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Aliasing error bounds are derived for one- and two-channel sampling series analogous to the Whittaker-Kotel'nikov-Shannon series, and for the multi-band sampling series, and a "derivative" extension of it, due to Dodson, Beaty, et al.
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Aliasing in the one-channel case is shown to arise from a transformation with similarities to a projection.
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An Estimation of the Truncation Error for the Two-Channel Sampling Formulas
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Guanidine-type compounds that reached clinical status include amongst others the potassium channel opener, pinacidil and the histamine H2-receptor antagonists (e.g.
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The tetra-n-butylammonium cations were stacked to give two columns within each channel with cross-sectional size of about 2.30 nm × 0.93 nm.
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A significant positive correlation was observed between the annual flow and the size of forest harvesting, which resulted in the increase of river runoff after forest harvesting.
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This study, in context of river catchment management, highlights the controls of riverbed morphology to the flow current structure, which will shed light on the post study of Three Gorges damming in 2009.
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Transjurisdictional water pollution is an important reason for water environmental deterioration of river basins, and currently there are some major defects that exist in China's management system related to transjurisdictional water pollution.
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Macroinvertebrates are important components of stream ecosystems, and are often used as indicator species for the assessment of river ecology.
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Ecological conditions were assessed in the zone of river and sea water mixing in the northern Caspian Sea regions exposed to high anthropogenic pressure.
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ADCP measured flow current of the middle-lower Changjiang River channel
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Their cross sectional distribution patterns in relation to the river channel morphologies were examined by using ship-mounted ADCP (Acoustic Doppler Current Profiler) instrument.
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The influence of the water level in the period of the open river channel and the duration of lower floodplain inundation on the feeding conditions, abundance, and population state of coregonids in the Lower Ob was investigated.
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It is shown that the radionuclide distribution across the floodplain and along the river flow is determined by the formation of a barrier to their migration near the river channel, at which less mobile 137Cs accumulates.
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Basic Principles of the Hydraulic Theory of Formation and Development of River Channel Mesoforms
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