查询词典 extraction

The ultrasonic-assisted solvent extraction and quantitative analysis of the oxine-copper residues in soil with ion pair of antiphase HPLC was established. This methods mainly uses XBridge C5 column and UV detector by using waters phase of phosphatic buffered solution/acetonitrile (60:40, by vol) as mobile phase with 0.8 mL/min flow ratio and UV detection at 245 nm. The residue time was 4.72 minute. The linear correlation of this method was 0.9987. The recovery rate was 76.2 to 108.7%. Comparatively standard deviation was 0.6 to 3.37%. The detection limits of method was 0.05 mg/kg.

建立了土壤中喹啉铜的超声波辅助溶剂提取－反相离子对高效液相色谱法的残留分析方法，该方法使用XBridge C18色谱柱和可变波长紫外检测器，并以水相磷酸盐缓冲体系－乙腈（体积比60：40）作流动相；流速为0.8mL/min；检测波长为245nm；保留时间为4.72min；线性相关系数为0.9987，回收率在76.2%~108.7%之间，相对标准偏差在0.6%~3.37%之间，对土壤的最低检出限为0.05mg/kg。

A extraction and tracking of the contour of gastric antrum in the ultrasound sequence images based on active contour models is presented in this paper.

本文提出了一种基于活动轮廓模型的胃窦B超序列图象边缘轮廓的提取与跟踪方法。

And it is further proved that the technique is effective and practical by means of the examples of the extraction of periodic and aperiodic signals.

运用周期和非周期弱信号的检测实例，进一步证明了该方法的有效性和实用性。

The removals of the supers and the honey extraction operations are recorded in the apiary register.

蜂蜜的收获等生产活动都记录在养蜂场登记簿中。

This method was applied to the dimensionality reduction of multidimensional time series via projection pursuit technique for fuzzy clustering. According to the results of the classification and the extraction of fuzzy rules through best value projection, three types of fuzzy membership function were generated using trapezoid distribution method. Then the sample's credit level was determined according to the fuzzy approximability in computation.

该方法利用投影寻踪技术对多维时间序列数据进行降维处理并进行模糊分类；根据分类结果和最佳投影值提取模糊规则，采用梯形分布法生成三个模糊隶属函数；最后根据计算模糊贴近度确定样本的信用级别。

Besides the traditional contents of oral surgery, such as extraction of teeth, alveolar surgery, preprosthetic surgery, TMJ disorders, jaw injuries and salivary gland diseases, additional sections such as microvascular surgery, cosmetic surgery, plastic and reconstructive surgery, head and neck tumour surgery, and Traditional Chinese Medicine are also appurtenant parts of typical oral and maxillofacial surgery of China.

其所涉及的学科领域和内容较西方一些国家更广，除传统的口腔外科——牙及牙槽外科、修复前外科、颞下颌关节病、颌面损伤、唾液腺疾病等外，还包括了颌面整复外科、显微外科、头颈部肿瘤外科等内容，而且还有独特的传统医学——中医学的结合及参与，形成了具有中国特色的口腔颌面外科学。

Three methods for polyform samples (ashing method, extraction by HNO3+H2O2 and digestion with aqua regia) were compared and the results showed that the second method is the best one.

进行了灰化法-王水提取、硝酸-过氧化氢消解-王水提取和沸水浴王水提取试样的比较实验，以硝酸-过氧化氢-王水提取法为最佳样品分解方法。

This new technique of bile extraction in violation of the bears of China's existing aquaculture regulations.

这种新的胆汁抽取技术违反了中国现有的熊类养殖业的法规。

Aqueous two-phase system is a new kind of extraction separation system quickly developed in recent years.

双水相体系是近年来才迅速发展起来的一类新型萃取分离体系。

This paper discusses the application of horizontal directional drilling technology in shallow least permeable aquifer groundwater extraction.

对导向钻进铺管技术在浅层低渗透性含水层地下水开采中的工艺进行了详细探讨。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。