定向线

The linear plasmid and the designed fragment were directively ligated with T4 DNA ligase,and the plant expression vector of carrot afp was constructed.

将目的片段与线性质粒在T4 DNA连接酶的作用下进行定向连接，构建成胡萝卜afp的植物表达载体pBAF。

The straight gneisses have the plane-straight gneissic; beating a few, fine and plane-straight felsic streaks; the mineral stretching lineation; as the S-L tectonite with the features of finer mineral grain size (1mm±), uniform grain size grade and bad directional, showing the ultra-plastic flow mechanism.

强直片麻岩发育平直的片麻理，长英质条带含量相对较低，但细而平直，发育矿物拉伸线理，为S-L构造岩，矿物粒度相对较细(1mm±)，粒级均匀，定向性差，均反映出强直片麻岩的超塑性流动变形机制特征。

In treatment group, 42 cases received 50 Gy radiation, at 2 Gy per day, 5 d per week in the upper mediastinum, hilus of lung, below the primary focus first and then underwent X-knife for the primary focuses, and other 14 recurrent and metastatic cases received irradiation of 8-12 Gy per day, 5 d by X-knife alone.

治疗组中42例为外照射上纵隔、同侧肺门、隆突下及原发灶50 Gy/25F后加用X线刀治疗原发灶5 Gy/次×5次；14例为肺转移癌或手术后外周孤立性复发病灶行单纯立体定向放射治疗，8～12 Gy/次×5次。

It is demonstrated that at the temperature of 40°C, the Sb_2O_3 nanorods with different lengths (2~50μm) and diameters (20~1000 nm) would axially self-assemble into multisegmented coaxial nanowires by an oriented attachment assisted end-to-end self-assembly process.

研究表明，在40摄氏度下，不同长度的(2至50微米)和直径(20至000纳米)的三氧化二锑纳米棒，通过&头碰头&的&定向接触&的自组装过程，沿轴向自组装成三氧化二锑多段同轴纳米线。

Brain malignant glioma/radiotherapy ; X-ray stereotactic radiosurgery ; noncoplanar arc radiation

脑恶性胶质细胞瘤/放射疗法； X线立体定向放射治疗；非共面弧形照射

Methods Rat bone mesenchymal stem cells were isolated from adult rats bone marrow by Ficoll -Paque density gradients, cultured and amplified in vitro, and then identified by flow cytometry ; Middle cerebral artery occlusion model of regional cerebral ischemia in rats were made by thread embolizing.

方法Fieoll-Paque分离液梯度离心分离大鼠骨髓间质干细胞（rat bone mesenchymal stem cells，rMSCs），经体外培养扩增并流式细胞术鉴定；线拴法制作大鼠大脑中动脉闭塞脑局灶缺血模型，Hoechst33342标记细胞，分别通过静脉移植及立体定向局部移植到大鼠缺血侧纹状体。

Al /AlLi-Mg〓Si and α/TiAl〓-Mg〓Si pseudobinary directional eutectic composites with fine structural integrity were achieved by investigating the influence of various amounts of alloying Li and Ti on the eutectic line, the preferred eutectic reaction point and the range in which eutectic structure appears in Al-Mg-Si system, through which the modification on the matrix and strengthening phase in this system was realised.

通过考察不同含量Li和Ti合金化对Al-Mg-Si系中共晶线、最佳共晶成分点及产生共晶组织的范围的影响，制备了组织完整性良好的α/AlLi-Mg〓Si和α/TiAl〓-Mg〓Si伪二元定向共晶复合体，从而实现了对其基体和强化相的调整。

Purpose To evaluate the effect of stereotactic radiotherapy in the treatment of brain metastasis.

目的 探讨 X线立体定向放射治疗在脑转移瘤常规放射治疗中的作用。

Objective To observe the clinical curative effect of X-ray stereotactic radiotherapy .

目的观察X线立体定向放射治疗复发性卵巢癌的临床疗效。

For the particularities of high-speed maglev train, rotor fluxed oriented vector control is investigated. And the control strategy is testified to be viable by simulation and experiment.

针对高速磁悬浮列车运行的特殊情况，重点研究了基于转子磁场定向的矢量控制策略，并利用MATLAB Simulink建立了仿真模型进行了仿真，最后应用于上海1.5km试验线进行了实验，验证了控制方法的有效性。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。