粒

Results :The essay had amplified fragment of gene from 20 white colons, and sequenced the DNA.

结果：实验从20个白色菌落中经PCR扩增出基因片段，对其中6个克隆的质粒进行DNA序列测定，发现其中1个质粒含有特定的人hnRNP A2／Bl基因序列。

Power of motor is convected to gearbox through belt , and after slowdown and increase torsion, the power is passed to the main shaft of the disc and drive it to rotate.

电动机的动力通过皮带传送给变速箱，经变速箱降速增扭后，将动力传给制粒圆盘主轴，带动制粒圆盘旋转。

Then,the seed-emulsion was respectively copolymerized with many kinds of acrylates to form the excellent silicon-acralyte emulsions.

探讨了乳化剂加入量、种子乳液量、乙烯基硅含量(Vi-D4用量)、活性物含量等因素对硅-丙乳液转化率和接枝率以及乳胶粒形貌和乳液粒径分布的影响。

The dry rubber transect made from composite latex was observed with SEM. It was discovered that large particles of the creaming composite latex syncretized very well, and formed dry rubber membrane.

采用扫描电镜观察了复合胶乳干胶膜的断面形貌，发现大粒径的膏化胶乳成膜后胶粒间可以较好地融合。

The effect of dosage of creaming reagent on creaming time, latex solid content and average particle size was studied, and it was found that the composite latex particle size was too large, and the concentration period was too long, about 15 days.

以海藻酸钠为膏化剂对复合胶乳进行了膏化浓缩，研究了膏化剂用量对膏化时间、胶乳固含量和胶乳粒径的影响，结果表明膏化浓缩胶乳粒径较大，膏化周期较长，一般需半个月左右才能得到实用的浓缩胶乳。

Methods The total RNA was acquired from young rabbit particular cartilage, the BMP7 gene was inserted into pcDNA-3.1 to construct eukaryotic expression vector plasmid of pcDNA3.1-BMP7; the target gene-BMP7 was identified respectively by PCR analysis, restriction enounces analysis and nucleotide sequencing; the plasmid was transfected into adult rabbit knee articular chondrocytes, then the expression of BMP7 was detected by in situ hybridization, PCR and Western blotting.

从体外培养的幼兔膝关节软骨细胞中提取总RNA；按GenBank BMP7基因序列化学合成2条引物，采用RT-PCR方法得到BMP7基因；将BMP7基因片段插入到真核表达载体pcDNA 3.1中，构建pcDNA3.1-BMP7真核表达载体质粒；利用双酶切、PCR及核苷酸序列分析鉴定BMP7目的基因；将重组pcDNA3.1-BMP7真核表达载体质粒转染家兔关节软骨细胞，分别采用原位杂交、PCR、Western blotting法测定BMP-7表达。

The CoFe2O4/TiO2 magnetic nano-photocatalysts has fairly good magnetic property. The X-ray diffraction, transmission electron microscopy and ultraviolet-visible technique were used to analyze the phase structure, size and spectrum response scope of the samples. The XRD indicated the anatase TiO2 was formed when TCF modified by plasma. The size of CoFe2O4 particles was about 20 nm. The diameter of CoFe2O4/TiO2 particles is in the range of 30~40 nm. So the shell of TiO2 enwraps closely around the core and the thickness is in the range of 10~20 nm.

运用VSM技术对样品磁性能进行研究，结果表明：等离子体修饰后的复合材料仍具有较高的饱和磁化强度，可在外加磁场作用下实现催化剂在水中的分离与回收；样品的XRD、TEM和UV-Vis分析测试结果表明：等离子体修饰后的复合材料有锐钛矿型TiO2存在；TEM谱图显示磁核CoFe2O4的平均粒径约为20 nm，TCF复合粒子的粒径约为30~40 nm，TiO2包覆层的厚度为10~20 nm。

The results show that the size distribution of suspended sediment is mainly influenced by three factors: sediment sources, resuspension of bottom sediment by tidal force, and flocculated settling of suspended sediment.

以实测悬沙粒径、流速、含沙量资料为基础，通过悬沙不同粒级组分、中值粒径以及粒度参数的统计，分析椒江河口最大浑浊带核部悬沙粒径分布变化特性。

The internal structure of chloroplasts includes stacks of membranes called grana, which are embedded ,in a matrix called the stroma.

叶绿体的内部结构包括称为极粒的堆叠的薄膜，极粒包埋在称为基质的细胞间质中。

Result: In cells of weightless group and hit group,some changes were found in chloroplast grana,starch grains and vesicles in chloroplasts.

结果：发现叶绿体的基粒片层、淀粉粒及叶绿体中的囊泡等在失重组和击中组中有不同程度的变化。

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。