可达到的

For most of tertiary phosphine ligands, the coupling yields of bromobenzene can reach to about 90%.

对大多数的叔膦配体，溴苯的偶合产物的产率均可达到约90％。

Compared with picosecond pulse laser, the intense of pulse is the main factor of the finally temperature of electron.

发现电子与晶格耦合系数影响材料表面电子的温升及电子与晶格温度耦合时间；与皮秒激光比较，脉冲功率密度是影响电子最终温度的主要因素；飞秒激光烧蚀金属材料的厚度可达到表层厚度量级。

Compared with ATBC, PBA is more effective to plasticize PLA when the plasticizer content is higher than 20wt%.

PBA增塑的PLA体系的断裂伸长率可达到600%以上，并且能够保持23.7MPa的拉伸强度。

The plumpness ratio is the bestindicator of full rapeseed.(5) The equivalent diameter is used to estimate the weight of rapeseed, andestablish the special and common model. In the overall, the correlation coefficient ofpredicted and measured values was over 0.99. The accuracy is more than 95%.

5以等价直径估测油菜种子重量，分别建立各品种的专用模型和面向白菜型、甘蓝型油菜的通用模型，两类模型在整体预测方式下的预测值与实测值间的相关系数均在0.99以上，预测精度可达到95％以上。

There is a hypothesis of the model that sky is clear,many atmospheric parameters are not taken into account,such as cloud cover and precipitable water content of the atmosphere.

通过实验区域的实地采集数据验证，本模型计算的直接太阳辐射量和日照时间的准确率可达到90％以上，散射辐射由于有很多因素没有考虑，还有待进一步的研究。

BACKGROUND: Based on the multi-directional differentiation potential,the combined application of proper biological materials and growth factor can repair tissue defect.

背景：利用骨髓间充质干细胞的多方向分化潜能，选择合适的生物材料和适当的生长因子联合应用，可达到修复组织缺损的目的。

On that basis,the authors used the single-factor assessment method and multi-factor assessment method(comprehensive pollution index and Nemeron pollution index)to assess the data of groundwater pollution by this refuse landfill site.

结果表明，该垃圾场对地下水的污染极其严重：综合污染指数可达到59；单项污染组分如NO2-、NH4+、COD等普遍比参照值高出几十倍，致癌物质NO2-则高出340多倍。从水质的角度看，地下水中有的污染物(NO2-、NH4+、COD)已经超出地下水Ⅲ类水质标准数十倍甚至100多倍，到了不能饮用的程度。

The nanoparticle composites took the shape of roundish spheres with their mean diameter of about 70 nm. The nanoparticle composites have good dispersion, excellent compatibility and abundant active functions on the surface for immobilization of laccase.

所得到的纳米复合粒子的平均粒径可达到70nm左右，接近超顺磁性，分散性好，有良好的生物相容性，而且表面有大量活性官能团(-NH_2)，是一种优良的载体材料。

The results indicate that the welding temperature is the most important factor for diffusion welding of composite. When the welding temperature range is between solidus and liquidus, the peak joint strength can reach 170 MPa.

指出焊接温度是复合材料扩散焊接最重要的工艺参数，焊接温度介于基体合金固相线与液相线之间，接头强度最高值可达到170 MPa；接合界面的氧化膜阻碍基体原子的扩散，是复合材料接头强度下降的原因之一。

Through constructing the function between the radius of a sphere and its auxiliary variables, the radius can be obtained if one of the coordinates of each spherical point is measurable and the other two are constant and unknown.

当球面点的坐标分量之一已知，而另外两个分量固定不变但未知时，通过建立球半径与辅助变量之间的关系，可达到测量球半径的目的。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！