有根据的

Our products mainly include resin bond diamond grinding wheel, metal bond diamond grinding wheel, adamantine drill, geological drill as well as other diamond products made upon the demands of the customers.

主要产品有：树脂结合剂金刚石砂轮、金属结合剂金刚石砂轮、金刚石工程钻头、地质钻头及根据客户所需求的各种金刚石制品等。

A sufficient condition for the oscillation of bounded solutions of a kind of second order neutral differential difference equation s established.

建立了一类二阶中立型微分差分方程有界解振动的充分条件，且当变系数都是常数时，该条件也是必要的；同时，根据该方程的"极限"方程建立了它自身的一个有界振动准则。

According to the theory of flow diffusion and convection, three-dimensional state equation of radon field is established for constant and variable diffusion coefficient and convection rate. The numerical solutions for different coefficient and different boundary conditions are obtained for two models of radon field which have respectively source in the side and inside of collapse column.

根据流体场的扩散理论和对流理论，建立了扩散系数与对流速度为常量或变量情况下的氡气场三维状态方程；对於陷落柱柱体侧面有源氡气场和柱体体内有源氡气场两种理论模型，给出了不同系数和边界条件下的数值解的形式。

Dihedral group I_2(m and Coxeter group of group H_3, H_4 are noncrystallographic in irreducible finite Coxeter group.

根据分类，非Weyl群的不可约有限Coxeter群有二面体群I_2和群H_3，H_4。

According to the first quarter financial forms for reporting statistics on Netease, the company has cash and time deposit many yuan of 50 RMB, taking out 10 thousand yuan thousands of is cole dishful.

根据网易上一季度的财务报表，公司有现金和定期存款50多亿元人民币，拿出几千万元是小菜一碟。

A water: Ah, that is engaged in the experience since SEO research is so long according to you, what doohickey is shared with each stationmaster!

一滴水：呵呵，那根据您从事SEO研究这么久以来的经验，有什么窍门跟各位站长分享一下！

The main products are drill chuck series, automobile hub bearing series and bathroom cabinet series, including more than five hundred types; in the meanwhile, we can develop and manufacture new products according to the demands of our customers.

主要产品有钻夹头系列，汽车轮毂轴承系列和浴室内阁系列，其中包括超过500种；在此期间，我们可以开发和制造新产品，根据有关要求，我们的客户。

A new method for calculation of earthwork quantity in hydraulic engineering was presented,based on analytical area measuring principle.

根据解析法量测面积原理，提出一种水利工程中土方量的快速计算法，该方法简便、易于掌握，计算精度有较大提

According to this definition of deceiving, there is no addressee condition for deception, and it is possible to deceive an eavesdropper.

根据对欺骗的这一定义，对欺骗来说没有被表达者条件，所以有可能欺骗一个偷听者。

The glaciers, perhaps 200 million years old, also may entomb genetic fragments of past microbial life on Mars as well as air bubbles that might reveal the composition of the atmosphere as it was long ago, according to geologist James Head of BrownUniversity in Providence, Rhode Island.

根据 Rhode Island 州 Providence 大学地理学家 James Head of Brown 的说法，这块大约有2亿年的冰河可能会藏有火星过去生物的基因碎片，也可能会有一些气泡。这些气泡里的空气会表明多年以前火星大气的成分。

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。