基带

In this study we constructed the recombinant pcDNA-HA-rpb in E.coli cells and we expressed the three polymerase II subunits; Rpb5, Rpb6 and Rpb7 as HA-tagged polypeptides by transfection in 293T mammalian cells, as well as untagged nuclearβ-actin.

在这项研究中，我们在大肠杆菌中构建了pcDNA-HA-rpb重组质粒，表达三个聚合酶II亚基： Rpb5 ， Rpb6和Rpb7，通过转染哺乳动物细胞293T，从而表达带HA标签的多肽，同时转染不带标签的β-actin。

The analyses results show this long wavelength emission peak should be attribued not to the emission from aggregators or excimers in films but to the vibronic transition from S1 excited state to S0 ground state.

在对其采用曲线拟合的基础上，进一步对薄膜样品的带隙下激发谱和选择激发荧光谱进行了分析，从实验上论证了长波段的发射峰来自于激发态S1到基态S0的振转跃迁，排除了薄膜聚集体和激基缔合物发光的可能性。

From there, the idea was simplicity itself: Attach a garden-variety, Sears aluminum lawn chair to the balloons, strap on some water jugs for ballast, take along a pellet pistol to shoot out the balloons to control the descent, pack a parachute and carry a CB radio, and maybe, with luck, sail across the desert to the Rocky Mountains.

有了这些，想法就变得非常简单了：在一把普通的、Sears牌的铝制草坪椅上绑上气球，系上些水壶来压舱，带一把气手枪用来打气球、控制降落，装好一只降落伞，带上一个民用波段无线电，运气好的话，有可能飞跃沙漠，抵达落基山脉。

OBJECTIVE: To evaluate the effects of platelet-rich plasma and the fascia with blood vessels on the vascularization of tissue-engineered bone composited by marrow stromal stem cells and decalcified bone matrix.

目的：拟从组织影像学角度评价富血小板血浆及带血管筋膜对骨髓基质干细胞／脱钙骨基质复合的组织工程骨血管化作用效果。

Active hydrogen atom and oxygen ion form Hydroperoxy radicals which surround the positively charged biological contaminants, and then react with three hydrogen elements of its protein structure, destroying and detoxicating the biological contaminants nature.

活性氢和氧离子(O2-)形成的氢过氧自由基，会包围着带正电荷的生物污染物，每一枚黏附在污染物表层的氢过氧自由基，会与其蛋白质结构中三个氢元素产生反应，完全破坏其结构，变成无毒状态。

This is possibly related to the testis of adult SOD eradicates constantly the injury to of sperms by free redical of superoxide.

睾丸SOD活性带变化提示，成年鼠睾丸的SOD带活性强于幼年鼠的活性，这与成年鼠睾丸的SOD不断地清除超氧化物自由基对精子发生过程的损伤有关。

The foundation of arch dam usually is layer rock base, and the depths of the layer are small, it is common that several layer rock base contact with one layer element grid. According to the geometry relation and the property of shape function, a new element kind that includes 24 nodes has been proposed to dissect the dam and foundation effectively, whose shape function are independent. In fact the element can be looked as a hexahedron divided into five small hexahedrons. It can be simulate all kind of the condition of the base and the dam.

拱坝的地基一般是层状岩石地基，有的层厚度很小，这样就有多个岩层和坝体某层单元接触，本文根据岩基与坝体接触的几何关系，利用形函数的性质，提出24节点六面体层单元，这种单元实际上是将一个厚的六面体单元分成5个更薄的六面体单元而形成的，其形函数采用可以拆分的形式表达，因此可以方便地解决坝体单元的一、二、三、四个面与错动带接触的情况，可以模拟一、二、三、四个棱边与错动带接触的情况，还可以退化为12节点的四边形面单元，以及五面体层单元。

Step procedure. Firstly, glycidyl rnethacrylate was photo梘rafted onto the surface of PVC without degassing. An activated surface with active epoxy groups was formed. The grafted polymer can also act as the spacer between heparin and PVC; Secondly, heparin is attached to the grafted surface through its functional groups reacted with the epoxy groups.

第一步，通过紫外光接枝反应将甲基丙烯酸缩水甘油酯接枝到PVC材料表面，接枝链作为肝素和聚氯乙烯材料之间连接的间隔基，同时也得到了带有环氧基团的反应性表面；第二步，通过肝素分子所带功能基团与PVC材料接枝表面上的环氧基之间的反应将肝素共价键合到PVC材料表面。

The (A~2Π_i)-(X~2Σ~+)(2, 0) band of CN was reinvestigated in the AC glow discharge of CH_3CN with He as the carrier gas using near-infrared concentration modulation laser spectroscopy.

利用近红外差分浓度调制激光光谱技术，我们在氦气和乙腈的交流辉光放电中观测到了CN自由基(A~2Π_i)-(X~2Σ~+)(2，0)带的吸收谱，测量和标识了189条谱线，包括全部12个转动支带。

We calculate the correlation energy of poly (para-phenylene-vinylene) chain and the band energy gap value of PPV with taking the long-range electron correlation into account, and we discuss the influence of the correlation energy on the band energy gap.

在考虑电子-电子相互作用情况下，对基态非简并聚合物聚对苯乙炔的长程关联能进行了理论计算，并用长程关联能对带隙进行修正，最后讨论了长程关联能对带隙的影响。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。