查询词典 periodical

These tubes are hydrostatically tested by the manufacturer but, unlike cylinders and mobile tubes, periodical hydrostatic testing is not required.

这些管道经过了制造商的流体静力学测试，但是和钢瓶和移动管道不一样，它们不要求定时的流体静力学测试。

When fiber Bragg grating is pressed by local transverse force, the reflection spectra are independent of the applied length. The wavelength of split point is periodical and linearly proportinal to the applied force. And the reflectivity of split point is approximately hyperbolically tangential versus the applied position.

研究表明，当FBG局部横向受力时，受压长度对反射光谱无影响，反射光谱分裂点的波长与横向作用力呈线性正比关系并具有周期性，分裂点反射率与受力位置的关系为近似双曲正切关系。

The method is shown about how the model is constructed and applied to classification. Two sorts of kernel function are applied to SVM, they are multinominal function and radial basis function. The model and algorithm are applied to some documents of China periodical document database and classification results illustrate its practicability.

文中给出了该模型的构造及应用的方法，用两种核函数作为内积回旋方案，以中国期刊网全文数据库部分文档数据为例验证了该方法的有效性。

Holographic lithography method is one of them, which means that fabrication of 1D, 2D and 3D periodical microstructures by interference of two beams, three or four noncoplanar beams, multiple mutually coherent laser beams are made to intersect and interfere, producing period patterns of light and dark areas repeated on a scale proportional to the wavelength of the beams used.

全息光子晶体的实验制备及缺陷引入在光子晶体的实验制备中我们主要研究两个方面，一是激光全息干涉法一步成型制备大规模无缺陷的光子晶体，二是用单光子和双光子聚合相结合的办法，在光子晶体中引入缺陷。

Depositional sequences in different depressions of the complex faulting lacustrine basin were mainly controlled by both the episodic tectonic movements with different orders and the periodical palaeoclimatic variations. Both of these parameters controlled fluctuation of lake level and also variations of the accommodation spaces.

复式断陷不同断陷内的层序，主要受旋回内不同级别幕式构造运动和气候周期性变化的控制，两者的共同作用影响著湖平面的升降和可容空间的变化。

After carrying through Kruscal-Wallis test for the loss all kinds of peccant behaviors, the results show: among the four major types of peccant behaviors, misdeeds in peccant pledge and affiliated trade can cause significant loss to investors, while earning information disclosure, capital misuse and periodical reporting overdue can not.

对各类违规行为造成的损失序列进行Kruscal-Wallis检验，结果显示担保或关联交易违规给投资者造成的损失最大，其次为收益信息披露违规、公告逾期和资金使用违规。

It is considered that the renew poind is development premise of information features for sci-tech periodical .

认为更新观念是科技期刊信息化特征的发展前提

The characteristics of density bands of Porites coral from Meiji reef in Nansha area are revealed by X-radiography of coral slabs and periodical changes of δ^18 O and δ^13 C in the skeletons.

结合珊瑚骨骼X射线照片和δ^18O、δ^13C的年际变化，对南沙群岛美济礁滨珊瑚骨骼岩心的密度条带进行了分析，发现其密度带变化模式多样，初步可归纳为如下3种类型：(1)宽度相近的高低密度条纹均匀、相间地排列，一对高低密度条带平均宽约4mm；(2)在骨骼主生长轴上由近于均匀分布的细密度条带组成。

Methods By ultrasonogram periodical observe fetalgrowthin the population who got in touch some "DV", and pregnance women who didit get in touch with "DV"use to contrast group,take forsight study.

利用超声显像定期观察孕期前后经常接触某些&发育毒物&的危险人群中胎儿发育情况，并以未接触&发育毒物&之孕妇为对照，作前瞻性研究。

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He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。