查询词典 sediment-covered

It puts forward to differentiate the coarse and fine sand and then measure the sediment yield of total precipitation erosion by using the combined method of drying and pycnometer in the light of the soil mixed with large quantity of coarser sand in the model tests.

针对模型土壤中夹杂着大量粒径较粗的泥沙颗粒的试验，提出进行泥沙粗细分层，然后采用烘干法和密度瓶法相结合的方法来测量次降雨侵蚀产沙量。

The distribution pattern also indicate radiolarian concentrations are strongly affected by the sediment type, radiolarian abundance and diversity is higher in the clay or mud than in fine sand, silt or coarse sand and decrease with the increase of terrigenous material. There is direct correlation between the radiolarian preservation and the amount of volcanic glass, the numerous volcanic ash shards have a significant influence on the radiolarian distribution pattern.

沉积物类型特别是其粒度和陆源物质的含量极大地影响着放射虫的分布，放射虫的丰度和分异度明显地随沉积物粒度的增大和陆源物质含量的增加而减小；同时，放射虫的分布也显示了与沉积物中火山玻璃含量的密切相关性。

Based on a quantitative analysis of radiolarian in 80 surface-sediment samples from the northern area of Okinawa Trough, this paper reported the species composition and faunal assemblages characteristic of radiolarian, expounded the distribution pattern of radiolarian abundance and diversity in surface sediments from this area. In this paper, a preliminary study on the relation of the distribution and abundance of radiolarian to environmental factors, such as chemical and physical properties of the overlying masses (sea-surface temperature, salinity, nutrients and primary productivity) and the type and composition of sea-bed sediments was made. The radiolarian data was evaluated using a Q-mode factor analysis to identify different faunal assemblages and their geographic distributions, then the relationship between radiolarian assemblages and distribution of water masses, hydrographic boundaries such as frontal systems was analyzed. A new radiolarian-based transfer function to estimate mean-annual sea surface temperature and seasonal range were examined to test its success in the study area.

本文对冲绳海槽北部80个表层沉积样品中的放射虫进行了系统鉴定和定量统计，研究了放射虫的种类组成与类群特征以及其丰度和分异度的分布；分析了海水温度、盐度、营养盐以及沉积物类型、成分等环境因素对放射虫分布的影响；采用Q-型因子分析，求得放射虫的属种和组合分布特征，探讨了放射虫组合与不同水团、海洋水文结构之间的关系；并对Pisias（1997）建立的估计表层海水年平均温度和其变化范围的放射虫转换函数在研究区的适用性做了检验。

The K of Cr, Cu, Pb, Zn, As are more in the sediment than in the organisms. The K of Cd, Zn, Hg are more in the mullet than in razor clam.

Cr、Cu、Pb、Zn、As在沉积物中富集系数高于生物体内，Cr、Zn、Hg、Ph在鲻鱼中的富集系数大于缢蛏中。

The results are as following: The concentrations of Cr, Cu, Pb, Cd, Zn, As and Hg were 0.57 7.37 l.89 0.18 36.99 l.57 0.018μgL^(-1) in the seawater, respectively. They are 30.11、30.62、32.61、0.106、68.56、2.48、0.027×10^(-6) in the sediment, respectively. Except Zn, other heavy metals are determined in the organisms. The concentrations of heavy metals are more in razor clam than in the mullet.

结果表明，表层海水中重金属Cr、Cu、Pb、Cd、Zn、AS和Hg的平均浓度分别为0.57、7.37、1.89、0.18、36.99、1.57、0.018μgL^(-1)；表层沉积物中重金属Cr、Cu、Pb、Cd、Zn、A，和Hg的浓度分别为30.11、30.62、32.61、0.106、68.56、2.45、0.027×10^(-6)气生物体内除了鲻鱼中未检出Zn外，七种重金属在缢蛏、鲻鱼体内均有检出，且缢蛏中重金属含量明显高于鲻鱼体内重金属的含量。

However, by modifying the reaeration coefficient, a good calculation result has been obtained. Similarly, the changing rule of COD can be monitored clearly, which may also provide scientific evidence to further understand the rules of pollution ejection and sediment motion.

经研究表明：考虑波动效应后，对复氧系数进行修正能得到较好的模型计算结果；同时，COD变化规律不仅可以弄清楚，而且可以为进一步研究排污规律和泥沙运动提供科学依据。

Feed was fed in a semi-closed tilapia fingerlings rearing pond to explore the sediment formation and impact factors.

在半封闭式奥尼罗非鱼养殖池中投入饲料，探索养殖过程中鱼池沉积形成及其主要影响因子。

The results showed that there were different natural sedimentation in the rearing ponds, with or without fish, either fed or not. Compared with the non-stocking ponds, the quantity of new particle formation and the sediment formation in rearing pond was 15.63% higher and 19.49% lower in the ponds with fish when same quantity feed was introduced. In the unfed condition, however, s...

试验结果表明：无论养鱼或未养鱼，投饲或不投饲，各池均发生不同程度的沉积；外源饲料输入量相同时，养鱼池新颗粒物生成量比未养鱼池大15.63%，而沉积量比未养鱼池小19.49%；无外源饲料输入时，养鱼池的沉积量比未养鱼池大75.76%；养殖系统内养殖对象与其所处环境的相互依存和相互制约对系统新颗粒物生成及沉积具有重要作用。

The refluence of Chuangjiang River can be partly proved by the provenance of its higher terraces. The refluence had possibly occurred if the sediment originate form east but not west.

川江倒流的问题可以利用川江高阶地的物质来源进行佐证，如果川江上段高阶地的物质来源于东部而不是西部，则川江就有倒流的可能性。

Analysis should be the reinstatement of the environment, there are intermittent eruption of deep-sea sediment environment.

分析应为还原环境下，有间歇性火山喷发的深海沉积环境。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。