有关存在的

However this way also has many problems, like drill set structures, drilling technology, which have effect on the DTH hammer drilling way.

但是，风动潜孔锤钻进方法在这些领域的应用，还存在这样或那样有关钻具结构、钻进工艺方面的问题，影响着风动潜孔锤钻进方法的应用和施工效果。

Experimental results show that acidic solution is in favour of the adsorption of tungsten on the adsorbents.

对我国华南地区与钨矿有关的地层所进行的地球化学研究证实，华南地区存在分布于不同时代的含钨建造。

This kind of model predicts certain model-dependent pseudoGoldstone bosons coupling strongy to the top quark.

该模型预言了与模型有关的赝Goldstone玻色子的存在，它们与top夸克有较强的耦合。

The results show that superplasticizer has effect on clinker grinding in varying degrees,which depend on the amount of superplasticizer and the property of clinker、The compatibility of the same clinker with different superplasticizers and that of the same superplasticizer with different clinkers are diferent.

结果表明，高效减水剂对水泥熟料具有不同程度的助磨作用，作用的大小与减水剂掺量及熟料自身物料特性有关；高效减水剂与水泥熟料之间存在相容性问题，同一种水泥熟料与不同减水剂、同一种减水剂与不同水泥熟料之间的适应性不同。

The results showed that,there is a deformation tendency of drawing, and flanging and the tendency is related to, in the same parameter of die and the same technological conditions,the hole size.

试验所获应变分布表明，带孔件在变形过程中存在拉深和翻边两种变形趋向性，在模具参数和工艺条件完全相同的情况下，其可能的变形趋势与孔的尺寸有关。

The source of Fe was provided strong supporting evidence. Iron isotopic ration of BIF has the positive dependence ofδEu, indicating the source of Fe correlation with hydrothermal fluid.9. A model for Fe cycling.

首次从成矿元素本身为BIF的物质来源提供直接证据：BIF的Fe同位素成分与Eu异常存在非常明显地正相关关系，这清楚地表明鞍本地区BIF中铁的来源与海底火山热液活动有关。9。

The investigations found that there were obviously different in the species richness and individual abundance in the different sampling site. The number of species and the quantity of individual collected from the littoral zone were much higher than those from the open area. The protozoan colonizing rate on PFU in the littoral zone was also significantly higher than that in the open water.

研究结果表明：（1）湖中敞水区和沿岸带原生动物种类数和个体丰度存在较明显差异，前者低于后者；（2）同一生境条件下PFU人工基质收集的原生动物种类多于采自自然基质的种类；（3）定量数据显示该湖原生动物个体数量秋、冬季在每升水中440—180个个体之间波动，较少的个体丰度与该湖属寡营养型特征有关。

EF116490. Characterization and comparison of this sequence with mouflons, goat, cattle and European bison orthologues were also conducted. Results showed that: 1 The 5'-flanking region contained many potential transcriptional factor binding sites such as those for C/EBPb, C/EBP, SP1, Cap, USF, HFH-2, HNF-3b, and Oct-1, which might have an important effect on transcription activation and regulation as well as tissue-specific expression.

EF116490，在分析其序列结构特征的基础上与GenBank中摩弗伦羊、山羊、普通牛、欧洲野牛进行了比较基因组学和系统进化研究，结果表明：(1)欧拉型藏绵羊GHR基因启动子P1区存在C/EBP、C/EBPb、SP1、Cap、USF、HFH-2、HNF-3b、Oct-1等多个潜在的转录因子结合位点，可能与GHR基因的转录调控和起始以及特异表达有关。

Toxins involved in the poisoning incidents were suspected to be paralytic shellfish toxins produced by toxic algal blooms in adjacent sea areas, since the symptoms of the patients closely resembled those caused by PSTs.

由于中毒患者的症状与麻痹性贝毒中毒症状相似，因此，许多中毒事件被归咎于麻痹性贝毒，认为织纹螺中的毒素与邻近海域的有毒赤潮有关，但也有研究发现螺体内存在河豚毒素。

Introduction 引言 The problems that occur while illuminating shallow offset parabolas, in addition to those related to the efficient use of parabolic generally, are additionally aggravated by the specific geometry of the parabolic mirror itself.

这个问题时常存在于浅照射的偏馈抛物面天线上，除了和抛物面天线的效率有关之外，抛物线反射面本身的具体几何形状又使之更加严重。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐