查询词典 longitudinal

The anatomical study deepens the knowledge of G-type conducting cells: 1 It proves the theory of two depositional process for secondary wall (Bierhorst, 1960): the discontinuous cellulose layer is laid down before the continuous lignified layer; the former layer is prone to be broken down, while the latter is highly decay-resistant; 2 It suggests that the cellulose primary and secondary walls of tracheids are not perforated. Instead of longitudinal pits (Li, 1992), the lignified tracheid secondary wall of Hsüa possesses irregular simple perforations; 3 In Hsüa reflexa and Huia gracilis, the perforation casts may represent the thickness of lignified secondary wall; 4 The wall structure of G-type tracheid is diversified. At the genus level, the secondary wall structure differs in the distribution, internal shape and structure of the perforations; 5 Perforations of some G-type tracheids combine the characters of S-type tracheids in their distribution, density and diameter.

解剖学的研究加深了对G-型输水管胞的认识 1）验证了管胞次生壁分两个阶段形成的理论（Bierhorst，1960），即先后形成不连续的纤维质层和连续的木质化层，前者易被分解，后者抗侵蚀性强；2）证明管胞纤维质的初生壁和次生壁不具穿孔，Hsüa管胞的木质化次生壁具有不规则的简单穿孔，而不是纵列的纹孔（Li，1992）；3）Hsüa reflexa和Huia gracilis的穿孔铸体可代表木质化次生壁的厚度；4）G-型管胞壁层结构具多样性，植物属一级的分异主要表现在次生壁穿孔的分布、孔腔形状和结构的不同；5）某些G-型管胞的穿孔在其分布、密度和孔径方面可兼有S-型管胞的特征。

The longitudinal conjugated property of ideal optical system ;2. Starting from the principle of photograph formation by an ideal optical system , this paper derives the formulas of field depth and hyperfocal distance.

本文从理想光具组成像原理出发推导出景深和超焦距的公式，物理思想明确，并结合公式绘出了景深与有关参量的直观图，摄影者容易理解和掌握。

First of all, the generic hypersonic vehicle longitudinal model and its stability was studied.

首先，研究了高超声速飞行器纵向模型及其稳定性问题。

The longitudinal displacement patterns of the composite girder are put forward by author according to its structural properties and hypothetic conditions.

针对组合梁上述特点，在一定的假设条件下，笔者提出了组合梁考虑剪力滞效应时的纵向位移模式。

It is shown that the decrease of reliability is evident when longitudinal probability distributions of cross sections of unbonded prestress tendons are considered, and the index of reliability is reduced with the increase of the number of independent and identically distributed random variables.

结果表明，考虑无粘结预应力筋截面积沿长度方向的分布特性而引起的可靠指标的降低比较明显，可靠指标随着独立同分布随机变量的数目的增大而减小。

For the longitudinal probability distributions of cross sections of unbonded prestress tendons, it is evident that the reliability index of unbounded prestressed concrete members decreases with the number of independent and identically distributed random variables decreases.

分析结果表明，体外无粘结预应力钢筋截面面积沿长度方向的变化，引起结构可靠指标的降低是比较明显的，可靠指标随着独立同分布随机变量的数目的增大而减小。

Looking from the history longitudinal, the corrupt culture's main body nearly is the imperially appointed official, their nobody does not read book of the saints and sages, does not have the official not to say cultivates oneself and puts one's house in order maintaining peace, actually also nearly does not have the official not to incur the power to accept bribes, does not have the official not to take bribes and pervert justice; Inspects from the crosswise aspect, besides the government official social stratum's corruption, the rich person has the rich person "corrupt", the poor person also has the poor person "corrupt"; Regarding corrupt is nearly nobody does not hate, however the corruption actually is also that "strikes root in the hearts of the people".

从历史的纵向来看，腐败文化的主体几乎都是朝廷命官，他们无人不读圣贤之书，无官不讲修齐治平，却又几乎是无官不招权纳贿，无官不贪赃枉法；从横向方面考察，除官吏阶层的腐败外，富人有富人的"腐败"，穷人也有穷人的"腐败"；对于腐败几乎是无人不恨，然而腐败却又是那么"深入人心"。

Hence, based on acoustic potential function and boundary condition on solid interface, we get reflection coefficient and refraction coefficient of longitudinal wave and transverse wave on solid-solid interface, and provide approximate formula of the reflection coefficient and the refraction coefficient about the first critical angle of incidence. We analyze relation between the refraction coefficient and acoustic impedance.

为此，基于固体介质的声势函数和界面的边界条件，推导了固-固界面纵横波的反射系数和透射系数，以及第一临界角入射情况下反射系数和透射系数的近似公式，并且分析了透射系数与声阻抗之间的关系。

The present study, which takes the interactionist and socio-cultural theory perspectives and adopts a longitudinal approach, aims to examine the effect of T-S negotiation on a learner's acquisition of English relative clause.

本文以互动理论与社会文化理论为指导，以英语关系从句为切入口，尝试探究发生在EFL课堂中师生间的协商对二语习得的影响。

Corona lobes as high as anthers and with interior angle forming an acute tooth incumbent on top of the anthers; inflorescences long pedunculate umbel-like clusters of cymules; follicles often with longitudinal or transverse ridges or wings

象花药并且具内角形成一有义务的锐尖齿在花药之上的一样高的副花冠裂片；花序长花序梗小聚伞花序的象伞形花序一样的簇生；蓇葖果通常具纵向的或横裂的脊或翅 35 Dregea 南山藤属

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐