1.The loess in Henan Province is composed of fine silt, silt and clay particles, among which, the content of silt particles is greater than 60% and clay particles usually is between 17.3%～32.6%.
河南省境内的黄土由粉细沙粒、粉粒、黏粒组成 ,其中粉粒含量大于 6 0 % ,黏粒含量一般在 17 3%～ 32 .6 %。
2.(3) Hebei argillaceous river mouth receive tide wash silt way should is it controlgate promptly to " transfer to flow and receive tide the way in which the tide washesthe silt naturally " to use, the gate is not controlled , receive the tide at the time ofrising tide , drags the silt from upper and low reaches of the floodgate at the time ofthe ebb tide.
(3)河北省泥质河口纳潮冲淤方式宜使用“自然转流纳潮冲淤加拖淤的方式”,即对闸门不控制,涨潮时纳潮,落潮时闸上、下接力拖淤方式。
3.The corrosion behaviors of nine kinds of copper alloy, exposed in nature silt seawater of Zhoushan for 1,2,4 and 8 years, were reported. The influences of silt in seawater on the corrrosion behavours of the copper alloys were inverstigated by in door accelerated corrosion test in clear seawater and in seawaters with silt of 0.75‰, 1.5‰ respectively, and the specimens were examined visually and microscopically and their corrosion rates were measured.
介绍了 9种铜及铜合金在舟山海域暴露 1、2、4、8a的腐蚀结果 ,并通过室内模拟泥沙海水的加速腐蚀试验 ,研究了这些铜及铜合金在泥沙含量分别为 0 ,0 .75‰ ,1 .5‰的海水中的冲刷腐蚀行为及海水的泥沙含量对铜及铜合金的腐蚀形貌和腐蚀率的影响。
4.The measure results in the diameter of silt and clay which reverse the reality account for 20% through 1 h surge decentralization and 8 cm sample depth. The variability is big in the diameter of grit,silt and clay through 1 h and 10 min boil decentralization separately.
8 cm深抽样条件下,振荡分散1 h有20%的样在粉粒与黏粒段的测定结果有悖实际,煮沸分散1 h与煮沸分散10 min两种测定结果在砂、粉、黏三段内的变异系数较大。
5.Proceeding from the viewpoint of two-phase flow,the Bernoulli equation for silt-laden water flow is derived, which reflects real mechanic characteristics of silt-laden water flow.
从两相流动观点出发,推导了含沙水流时的伯努利方程式,使其更能真实地反映含沙水流的力学特性;
6.For construction of Xijiao reservoir for the Jinghui Canal, the strata in both sides of the right and left abutments at el. 393.50~399.50 m, mainly composed of light, middle, heavy silt loam and light silt sandy loam, with a permeability coefficient k=(2.61~6.24)×10~(-4) cm/s, belong to moderate pervious strata.
泾惠渠西郊水库工程建设中发现左右坝肩两侧393.50～399.50m高程范围内地层主要为含砂轻、中、重粉质壤土及轻粉质砂壤土,渗透系数k=(2.61～6.24)×10-4cm/s,属中等透水地层。
7.Desorption of Cu~(2+) was reduced for sand,silt and coarse silt fractions,and increased a little for clay size when they were previously treated by phosphate.
砂粒级、粗粉砂级和粉砂级吸附磷后Cu2+解吸率减小,而黏粒级Cu2+解吸率略增加。
8.Two soils, a saline silt loamy soil and an alkaline silt clayey loamy soil, 3 discharge rates (2, 3.4, 8 1/h), 5 saline levels of irrigating water (4 different combinations of SAR = 20 and 2 and C = 80, 20 meq/l, as well as distilled water, DW), were used in the experiments.
三种滴头流量(2,3.4,8 l/h); 和5种不同的灌溉水质(SAR=20,2和C=80,20 meq/l,以及蒸馏水DW)。
9.The surface sediments in the eastern South China Sea can be divided into 11 types based on the data of sediment color, grain size analysis, chemical and mineral compositions, microfossils, etc. These sediment types are named as clayey silt with rock debris, shell sand, clayey silt, calcareous clay, calcareous ooze, foraminifer ooze, pelagic clay, silty clay with micro-manganese nodules, siliceous clay, siliceous clay with volcanic ash, silty clay with volcanic ash.
南海东部海域表层沉积物可被分为11种类型:含岩块砾石黏土质粉砂、贝壳珊瑚砂、黏土质粉砂、钙质黏土、钙质软泥、有孔虫砂、深海黏土、含铁锰微粒粉砂质黏土、硅质黏土、含火山灰硅质黏土、含火山灰粉砂质黏土.
10.Function of Series of Silt Arrester Dams to Detain Silt in Velley of Middle Reaches of the Yellow River——Taking Wangmau Valley as an Example
黄河中游沟道流域淤地坝坝系拦沙作用分析——以王茂沟流域为例
