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Total RNA was extracted from young leaf,young stem,radicle,and immature seed of wheat by four different methods respectively.

采用4种方法分别对小麦幼叶、幼茎、幼根及乳熟期籽粒的总RNA进行了提取和分析。

Methods Proteins existed in adult Schistosoma japonicum membrane were extracted by Triton X-100 and purified through reverse-phase high performance liquid chromatography,and the main protein peaks were then collected separately. 125 I-LDL of human plasma as the ligand, through the radioautography and radioligand binding assay, the protein which can bind human serum 125 I-LDL specifically was identified.

自人工感染家兔的肠系膜下静脉取日本血吸虫成虫，用非离子去污剂TritonX 10 0抽提出日本血吸虫成虫表膜蛋白，反相高效液相色谱进行分离纯化后，收集各主要分离蛋白峰，以12 5I标记的人血浆低密度脂蛋白作为放射性配体，经放射性自显影及放射性受体配体结合分析鉴定能与人血浆12 5I LDL特异结合的蛋白。

18 Patients with radioresistant NPC and 30 patients with radiosensitive NPC are included in the case-control study. Genomic DNA was extracted from peripheral blood lymphocytes by proteinase K digestion and phenol/chloroform extraction.

本研究旨在通过调查MDR1基因的单核苷酸多态性在鼻咽癌放射敏感和放射抵抗患者中的分布以及上述多态性对MDR1 mRNA在分具不同放射敏感性的三株细胞系内的差异表达的影响，探讨MDR1基因多态性与鼻咽癌放射敏感性的相关性。

The images of ranbutan were obtained by CCD camera. Image processing algorithm of OSTU and area labeling were applied to 48 rambutan images in order to remove the images of background and stem, and the texture features of color and lustre were extracted. A multi-grade support vector machine was set up, and color and lustre features were the inputs of DAGSVM.

通过CCD采集红毛丹可见光图像，经OSTU分割算法来分割图像背景后，采用面积标记算法得到去除长穗梗区域的红毛丹图像；然后提取基于色度的红毛丹图像的彩色纹理特征，并用多分类支持向量机的模式识别方法来识别红毛丹色泽等级。

Methods: Erucic acid from rape oil was extracted with cooling crystallization, and compared with lead salt method.

采用冷结晶法提取芥酸，并与铅盐法提取芥酸作了比较。

Rare metals are extracted by our factory from scrap iron and copper obtained by recycling the obsolete and waste.

本厂生产的稀有金属是收旧利废，从废铜烂铁中提炼出来的。在工人中引起骚动。

An alkaloid extracted from the plant Rauwolfia serpentina (trade names Rau-Sed or Sandril or Serpasil) and used to treat hypertension.

从萝芙木属植物中提取出来的用来治疗高血压的一种生物碱（商标是rau-sed或sandril或serpasil）。

When the Hamming distance was uncertain of its decision due to the influence of eyelids, eyelashes and iris deformations, mean and variance were extracted from coefficients of multiwavelets transform, and Euclidean distance of covariance reciprocal with weight value was designed as the classifier.

对因为睫毛、眼睑、虹膜变形等影响而不能有效识别的虹膜图像，再对多小波变换系数提取均值和方差作为全局特征，用方差倒数加权欧氏距离进行识别。

In this scheme, PICF based on higher order statistics is first extracted in the reduced space for effective representation of face images.

为确保计算有效性和检索正确率，运用可消除独立特征顺序不确定性的基于PICF的检索方法，并在具备不同亮度、尺度、姿势和图像描述变化的ORL脸谱数据库中完成了人脸图像检索实验。

So a novel content-based face image retrieval scheme is created based on this content feature-principle independent content feature. In this scheme, PICF based on higher order statistics is firstly extracted in the reduced space for effective representation of face images.

该方案首先在降维空间提取出基于高阶统计特性的主独立内容特征，应用提取的主独立内容特征进行有效的人脸图像描述。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失