底的

To evaluate the toxicity of the sludge, dredged from Victoria Port of Hong Kong , to marine benthonic animals lived in its pouring region, the toxicity test of the sludge to marine benthonic animals, including benthonic shellfish and crustacean, has been conducted.

为了评价香港维多利亚港疏浚淤泥对倾倒海区海洋底栖动物的影响，进行了两种底栖贝类和一种底栖甲壳类的生物毒性累积试验。结果表明，试验底栖贝类结蚶和缢蛏暴露在试验淤泥中240h和480h后，随暴露时间的延长，累积率增大。

Results showed that planktonic Prorocentrum were assembled to onegroup while benthic Prorocentrum were assembled to another group. The percentagesof the bootstrap values were higher than 95%. The results demonstrated that theplanktonic and benthic Prorocentrum should belong to different genus. Furthermore, the resulting phlogenetic structure showed the percentages of thebootstrap values (98%-100%) of Alexandrium in NJ and ML trees were significantlevers and belong to one group, divergently with genus Gonyaulax.

通过分析 17 种甲藻 18S rDNA 序列构建的系统发育树，营浮游生活的原甲藻在显著水平上聚为一类，而底栖种聚为一类，统计置信度均高于 95％，底栖原甲藻和营浮游生活原甲藻在 NJ 树和 ML 树上均为两个分支，且底栖型的分异速度较浮游型迅速，该结果说明原甲藻属中浮游种和底栖种应分属于不同类群。

By making theoretical analysis on vibration characteristics of a single slab and multi ones set in the inverted arch ring, four processes about stability failure, that is free vibration, locking, sleeking and distortion are proposed on the condition that water sealing was damaged and anchor-hold was out of action, a formula of the slab's maximum free displacement and dynamic equations in each process are obtained.

对反拱水垫塘单底板块和多底板块振动特性进行了理论分析，提出了拱圈底板块失稳分为自由振动、锁定、滑动变形及拱圈失稳四个过程，给出了各振动过程的动力学方程以及底板块自由振动的最大理论高度的计算公式。

Combined with investigation results of the furnace body erosion before relining, this paper analyzes the cause of production problems appeared in the first campaign life of the blast furnaces. Because of the existence of design shortcomings in large cooling block and bosh cooling stave, it resulted in poor furnace performance, such as stronger peripheral gas flow and irregular profile. The quick rise of bottom temperature of No.7 BF was caused by the penetration of molten iron into the joint of bottom carbon block, wheresas the quick rise of bottom temperature of No.6 BF was due to gas fleeing through the furnace bottom.

结合大修前炉体破损情况，对这两座高炉第一代炉役生产中出现的问题进行了调查研究。7号高炉大型模块和炉腰冷却壁设计上存在不足，引起高炉边缘气流发展，操作炉型不合理，炉况不顺；7号高炉炉底温度偏高是炉底炭砖渗铁造成的，6号高炉炉底温度偏高是炉底串煤气所致；7号高炉铁口失常的主要原因是铁口组合砖损坏严重和该部位炉壳开裂。

When we used those two multivariate statistic analytical techniques to study the spatio-temporal variation laws of benthic community structure at Shenzhen Bay, the results indicated that: 1 There was not obverse difference in intertidal benthic community structure between Futian, Shenzhen and MaPi, HongKong in Shenzhen Bay in Spring, 2000. However, there was continual gradient change in community structure from outer bay to inner bay. 2 There was obvious deference with the respect of benthic community structure between station C and stations Al, A2, A3 in transect A and station B in transect CBA in Shenzhen Bay. There being no benthos at station C in Summary, 2000, it indicated that station C had been polluted very heavily. 3 Deferent seasons and deferent tide sites are the most two important factors which play influence on benthic community structure at stations Al, A2, A3 and B3 in Shenzhen Bay.

用这两种多变量方法研究深圳湾底栖动物群落结构时空差异，结果表明(1)2000年春季深圳湾底栖动物群落结构组成在深圳福田一侧与香港米埔一侧并没有明显的差异，而是沿湾外向湾内呈现连续的梯度变化；(2)在深圳福田一侧的C断面的底栖动物群落结构与A、B断面有明显的差别，2000年夏季在C断面没有采到任何底栖动物，表明C断面已经遭受了严重的污染；(3)季节和潮区是影响深圳湾A1、A2、A3、B3站位底栖动物群落结构组成时空差异的两个最重要的因素。

Experimental research on the vibration of single slab and multi ones set in the arch ring is carried out in the first time. Slab vibration divisions along the water flow are proposed and their lists are determined. Laws of vibration distribution along water flow, across the arch ring, in time zone and frequency one are established. The most dangerous condition to slab's stability is obtained by comparing slab vibration in the different downstream depth.

首次对反拱水垫塘拱圈弹性单、多底板块的振动特性进行了试验研究，提出了拱圈底板块沿流程的振动分区，给出了各振动区的界限，得到拱圈单、多底板块振动特征值沿流程及沿拱圈的分布规律，底板块振动的时域和频域特性，对不同下游水位的振动特性进行了比较，给出了对拱圈底板块的稳定最不利的条件。

The floor cleaning slipper capable of being filled with liquid agent includes one vamp and one sole, and the sole includes one bottom cushion, one sole wall to form a holding space, one cleaning body around the holding space and at least ojne filling hole structure, comprising one hollow nail and one buckling ring in the sole wall.

本发明是有关一种可填充液剂的擦拭鞋，其具有一鞋底与一鞋面，该鞋底大致包括一中底垫、一鞋墙、一擦拭体与至少一灌浆孔结构。鞋墙包围的结合于中底垫的周缘部位并形成有一中底容置空间；擦拭体套设填充于中底容置空间；灌浆孔结构是由一中空钉与一扣环所构成，其结合于鞋墙上。

Refer to the research findings of CHengDu Research Institute of Geosciences and Minerals(1990) and Nanjing Research Institute of Geography and Lake of Chinese Academy of Sciences(1989), according to the Guidebook of China Stratum(2000), the chronostratigraphy of Kunming Basin is divided into 4 age: the bottom of the Quaternary corresponding to M/G Boundary, age is 2.6Ma;the Bottom of the Mid-Pleistocene corresponding to B/M Boundary, age is 0.78Ma;the Bottom of the Upper-Pleistocene corresponding to the Blake event, age is 0.128Ma;the Bottom of the Holocene corresponding to the Gothenburg event,age is 0.012Ma.

本次研究获得了大量的测年数据，参考成都地质矿产研究所(1990)及中科院南京地理与湖泊研究所(1989)等的研究成果，按照中国地层指南(2000)的方案，厘定了昆明盆地第四纪年代地层划分：第四系底界对应古地磁松山反向期与高斯正向期界线处，年龄为2.6Ma；更新统中部底界对应古地磁布容正向期与松山反向期界线，年龄为0.78Ma；更新统上部底界对应古地磁布莱克事件附近，年龄约0.128Ma：全新统底界对应古地磁哥德堡事件附近，年龄约0.012ma。

Wraps the bottom is a ring, the jacketed wall to the upward contraction tube, the tube cavity cross section diameter is equal to or be smaller than inward wraps the thermos pot bottom diameter, the jacketed wall upward pinch-out, interacts the part in a set of bottom and the jacketed wall, digs out some inclined half circular slot, wraps on the bottom to open 2-4 reservation spiral nail hole.

套底为一个圆环，套壁为向内向上收缩的筒，筒腔断面直径等于或小于所套热水壶壶底直径，套壁向上尖灭，在套底与套壁交结的部分，挖出一些倾斜的半圆槽，套底上开2—4个预留螺钉孔。

In a word, a man were better relate himself to a statua, or picture ,han to suffer his thoughts to pass in smother.

友谊底这第二种功用，也不限于那些能进忠言的朋友（他们当然是最好的朋友了），即令没有这样的朋友，一个人也能借言谈底力量自己增长知识，把自己底思想使之明白表现，并且把自己底机智磨厉得更为锋利，如磨刃于石，刃锐而石固不能割也。

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。