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   coefficient of erosion 的翻译结果: 查询用时:0.108秒
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coefficient of erosion
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  “coefficient of erosion”译为未确定词的双语例句
     Gauge number of leakage resistance reaches 0 8 MPa. The coefficient of carbonization is 0 88, while coefficient of erosion attains 0 78. Drying shrinkage decreases by 16 6%, however, long term strength (360 days) reaches 40 7 MPa.
     抗渗标号达到 0 8MPa ,碳化系数为 0 88,腐蚀系数为 0 78,干缩率降低 16 6 % ,长期强度 (36 0d)达到 4 0 7MPa .
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  相似匹配句对
     EROSION
     侵蚀
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     The runoff coefficient and the erosion modulus are related to the rainfall.
     其径流系数与侵蚀模数与次降雨量、降雨强度有一定的相关性;
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     Erosion and Forests
     侵蚀和森林
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     THE ABSORPTION COEFFICIENT OF H~-
     H~-之吸收系数(英文)
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     economic coefficient;
     经济系数;
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Since the building of a dredged material station at Part Lianyungang and field observations on the influence of the disposal of dredged matter on the beach process, a better understanding of the short time muddy beach process has been obtained. Results of the observations showed that: 1. Erosion and deposition process of muddy beach The action of waves near the shore, particularly in the surf zone, plays a key role in beach erosion. The surf zone has the strongest changes of profile. Near the shore, the tidal...

Since the building of a dredged material station at Part Lianyungang and field observations on the influence of the disposal of dredged matter on the beach process, a better understanding of the short time muddy beach process has been obtained. Results of the observations showed that: 1. Erosion and deposition process of muddy beach The action of waves near the shore, particularly in the surf zone, plays a key role in beach erosion. The surf zone has the strongest changes of profile. Near the shore, the tidal current was found to have an important effect on the dispersal and transport of suspended load. The eroded material is rapidly transported seaward by the tidal flow. As a result, there is a significant erosion of the beach surface in the surf zone. On the other hand the erosion caused by waves on the beach -3 meters outside the waterline is insignificant, so that concentration of silt in seawater is lower. Because the diffusive ability of tidal flow is relatively strong, the deposition of eroded material is not easy. So, the beach process is weak here. This suggests that the part of the beach outside the -3 meter waterline is only slowly varied. The variation of tidal current strength results in corresponding variation in beach erosion. The processing of dredged material at the beach took place mostly in the surf zone. The relatively lower wave height during the period of dredging (from April to August, 1983) and the better deposition condition (the depositional volume of silt accounted for about 69% of the total dredging volume deposited on the beach surface) resulted in a higher beach level. When the dredging ended and the waves were higher in winter, the strength of wave action increased and the surf zone widened accordingly, which lead to a significant erosion of the beach in the surf zone. However, in the region outside the -3 meter waterline the erosion was still slight because of the absence of breaking wave action. The beach in this region was relatively stabilized due to the lower concentration of silt in the water and the relatively strong diffusive ability of the tidal flow. 2. Variation of beach profile The variation of beach profile is essentially dependent on the balance between the supply of sediments near the shore, latitudinal distribution of erosional strength of the waves and the tidal flow action. The erosional strength of a beach is determined by the bed shear stress of wave and tidal flow(U_(*o)), and resistance to erosion of sediments on the beach surface (critical erosion shear stress, U_(*c)). The value of erosional strength can be expressed in the form: E'=M[(U_(*o)/U_(*c)~2)-1]△t/τ where E' is erosional value per unit area and unit time, and M is the coefficient of erosion. During dredging, the volume of deposition exceeds the volume of erosion and the beach accumulates deposits. With a decrease in the budget of silt, erosion of the beach occurs with the arrival of denser sediment. Erosional strength is reduced, and the beach profile gradually returns to a state of equilibrium. The cross-sections of the beach from the coast to the sea are different due to the non-homogeneous distribution of erosional and depositional strength. When the supply of silt is constant or low, the cross-section of a beach can reach an equilibrium state at last as a balance is reached between the erosion and deposition processes.

连云港新建吹泥站工程为淤泥质海滩演变提供了研究实例。观测表明,波浪是造成淤泥质岸滩冲刷的主要动力,而潮流的扩散是泥沙运移的主要动力。海滩演变主要发生在经常性破波作用范围(-3m等深线)以内。淤泥质岸滩剖面的变化与近岸泥沙供应及横向水动力强度分布有关,后者用波浪和潮流底切力表达。本文对此作了定性分析并对海滩冲淤进行了计算,结果与吹泥条件下海滩演变的观测一致。

The researchers have used high activity small admixture, and adopted some special technology in which cement is wrapped up by sand and stones, so that endurance of sprayed concrete is increased greatly. Gauge number of leakage resistance reaches 0 8 MPa. The coefficient of carbonization is 0 88, while coefficient of erosion attains 0 78. Drying shrinkage decreases by 16 6%, however, long term strength (360 days) reaches 40 7 MPa. The reasons of increasing endurance are also analyzed.

本项研究采用了高活性细掺料和水泥裹砂、水泥裹石工艺 ,喷射混凝土的耐久性大大提高 .抗渗标号达到 0 8MPa ,碳化系数为 0 88,腐蚀系数为 0 78,干缩率降低 16 6 % ,长期强度 (36 0d)达到 4 0 7MPa .对耐久性提高的原因进行了分析 .

 
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