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The result shows that coconut fiber is a suitable vegetate material of Hydrilia verticillata and Elodea nuttll for GSB technique.3, Interrelation of light compensation depth, hanging depth of GSB and submerged macrophytes revegetation were discussed in this article.

深入分析了水体光补偿深度、沉床悬挂深度与沉水植物恢复之间的关系，提出了生态补偿区的概念；认为沉水植被的恢复只能在生态补偿区内进行；并且通过实验方法确定了苏州苗家河水体中的沉床悬挂深度。

It is sometimes further argued that the traditional situation is reversed: instead of economic life being submerged in social relations, these relations become an epiphenomenon of the market.

有时进一步的讨论甚至认为，现代情况与传统的情况是相反的：不是经济生活沉浸在社会关系之中，而是这些关系变成了市场的附庸现象。

Hence, the survival rate of submerged plants is very low in eutrophic lakes.

因此在富营养化的湖泊中栽种沉水植物的成活率是很低的。

This paper is a summary on the design and operation1 of a submerged-com bustion evaporator.

本文总结了浸没燃烧蒸发装置的研制和运行经验。

The best conditions of removal is that the water level of 0.5m, figuline granule bed, shale substrate, hybrid aquatic plants including fox brush alga, yellow flower fleur-de-lis and xero-grass regarded as vanguard vegetation in submerged bed, with TN removal of 79% and reliability of 95%.

经正交表L9(3^4)完全试验中81种组合形式的工程平均估计和数量化方程的预测，这两种统计方法所得结果是吻合的，其结果可作为实施污染水体生态修复时的参考。

Leaves all similar, usually submerged, with filiform segments.

全部相似的叶，通常沉水的，具丝状的裂片。

Main loss of cultivated land is submerged by flood or dug to fishpond. Inferior loss of it is to city building.

江夏区的耕地减少主要是洪水淹没及开挖渔池所致，城市扩展所造成的耕地建设的数量并不大，但却是不可逆变化。

In such situation, if does not have the explicit development direction, or is does not have the aware protection and the development, all has the possibility to lose the self- competitive power, but is submerged in the world "the culture hastens with" the flood tide.

在这样的情况下，如果没有明确的发展方向，或者是没有自觉的保护与发展，都有可能丧失自我的竞争力，而被淹没在世界"文化趋同"的大潮中。

My company has a variety of sophisticated equipment 600, have pre-treatment line, automatic submerged arc welding machine, CNC cutting machine, machining centers, gantry cutting machines, sheet metal bending machine, hydraulic four-post, anti-conformal cutting machine, 1000 * 6000 drum lathe, Y5000 hobbing machine and other large equipment.

我公司拥有各种精良设备600台，有预处理线、自动埋弧焊机、数控切割机、机加工中心、龙门剪板机、板料折弯机、四柱液压机、防形切割机、1000*6000卷筒车床、Y5000滚齿机等大型设备。

After 24 h, a little culture medium supplied until fragmental tissue were just submerged.

对成纤维细胞采取了消化的方法，经2~3次传代后获得较为纯净的肿瘤细胞，现在已经连续传代12次以上，建立了有限细胞系，命名为SPA-02。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。