查询词典 headwater erosion

Objective To evaluate clinical effect of 99Tc-MDP in treating arthrosis erosion in advanced nodose rheumatism.

目的 研究新药云克（U[99Tc]亚甲基二膦酸盐）治疗晚期类风湿关节炎骨侵蚀的临床效果。

An investigation on cavitation erosion of nodular cast iron is presented in this paper.

针对球铁的汽蚀特性进行了研究，认为球铁中的石墨是球铁的汽蚀破坏源。

To insure the safety of the oil-pipe during the sluice of Tangjiashan Barrier Lake, calculated the erosion depth of the FU river cross section under the three possible dam-break types.

为了确保唐家山堰塞湖泄洪排险过程中输油管道的安全，对堰塞湖可能出现的三种溃坝方案中输油管道涪江穿越断面的冲刷深度进行了计算。

The stockpile of opencast coal mine is a kind of huge artificial loose dump, which has the problems of serious soil erosion and instability.

大型露天煤矿排土场是一种巨型人工松散堆积体，存在着严重的水土流失和排土场稳定问题。

The main ecological environment problems in opencast coalmine were analyzed in detail, and landslide, soil erosion and heavy metals were screened out as risk sources.

详细分析露天煤矿区的主要生态环境问题，筛选出矿区滑坡、水土流失和重金属为主要风险源。

Different control practices were applied on the serious erosion area, including the mixed forests of multi-tree species, whole hillside coverage with Bahiagrass, ditches with grass block, closing of hillsides and management to facilitate afforestation , orchard with terrace and grass cover.

在福建省长汀县强度侵蚀治理区内选择5种不同的治理措施：包括多树种混交、全坡面播种百喜草、条沟加草块、封禁与补植相结合、梯田果园生草。

But during intensive tectonic processes such as orogenesis, metamorphism, emergences and erosion of the land, these contrasting elements found each other and crystallised out to make one of our most beautiful gemstones.

但在密集的构造过程其间譬如造山运动， metamorphism，土地的诞生和侵蚀，这些对比的元素发现和结晶做我们的最美丽的gemstones 的当中一个。

Yanshan movement and the Himalayan orogeny, but also after years of weathering erosion, while the sculpture into the current look.

燕山运动和喜马拉雅造山运动，又经多年风化剥蚀，而雕塑成现在的面貌。

Geological Museum here is not only the ancient glaciers and karst erosion sites can be found in the mountains of the earth all traces of orogeny, most of the geological features of the landscape to bring together

这里又是地质博物馆，不仅有喀斯特地貌和古冰川侵蚀遗迹，还能在崇山峻岭中找到地球历次造山运动的痕迹，是最具特点的地质地貌景观汇集地

This paper mainly deals with these two parts:l.the effect of hydrosoluble HP,fibermesh and FDN on cement mortars bend resistant strength and compressive strength under the same operating conditions and with different HP mixtures;2.the effect of HP,FDN moderator,fly ash on the durability of concrete.that is the performance of resisting osmose,erosion and freeze thawing.

研究了HP水溶性高分子"纤维"、FDN高效减水剂与粉煤灰双掺配制的高性能混凝土的耐久性(抗渗透、抗硫酸盐侵蚀、抗冻融性能)。试验结果表明：HP水溶性高分子"纤维"对水泥砂浆和混凝土具有显著的增韧、增强作用，且水泥砂浆的抗压强度随着HP水溶性高分子"纤维"掺量的增加(2%-6%)而提高，抗折强度则降低；在混凝土中加入HP水溶性高分子"纤维"后，抗压强度随着掺量的增加2。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。