查询词典 time base

A second complication arising from the merger is that the 1977 figures shown in this report are different from the 1977 figures shown in the report we mailed to you last year. Accounting convention requires that when two entities such as Diversified and Berkshire are merged, all financial data subsequently must be presented as if the companies had been merged at the time they were formed rather than just recently. So the enclosed financial statements, in effect, pretend that in 1977 the Diversified-Berkshire merger already had taken place, even though the actual merger date was December 30, 1978. This shifting base makes comparative commentary confusing and, from time to time in our narrative report, we will talk of figures and performance for Berkshire shareholders as historically reported to you rather than as restated after the Diversified merger.

合并案所引发的第二项影响则是今年报表中秀出1977年的数字与去年提供给各位同一年度的数字有所不同，会计原则要求当像多元零售与伯克希尔这样二个独立个体合并时，所有报告的财务数字都必须假设这两家公司原本就在一起，所以后续呈现所有数字，是假设这两家公司早在1977年就已经合并，虽然真正合并的日期是1978年的12月30日，这样的改变使得比较性的评论很容易产生混淆，因为以往的报告中，我们告诉各位的都是伯克希尔的历史记录，而非依照合并多元零售后重新修正数字。

The major findings include:(1) By using fuel as the base indicator of relative efficiency, we found the following input factors' distribution inefficiency for domestic airlines: The distribution inefficiency of labor and capital input factors differs from airline to airline, and is becoming more severe with time; the distribution inefficiency of other factors does not differ very much among airlines but varies with time. It is inefficient from 1989 to 1995 but becomes more efficient during 1996 to 1997;(2) Airline companies have higher economies of density before 1996, but tend to show a constant return to density in 1997 when considering allocative distortions. The technical efficiency of input factors as a whole has declined after the open-air policy;(3) The costs of airlines are increasing significantly due to their distribution inefficiencies;(4) The instrument variable generated through a quasi price function does not have significant influence on cost; this may imply that airline companies in this time period did not exhibit the phenomena of high-quality high-price.

其主要结论如下：(1)藉由相对燃油分配效率探讨各投入要素之分配扭曲情形发现：劳动和因定投入要素之分配无效率因公司别而有所不同，且随时间而严重，唯民国86年稍有改善；其他要素之分配无效率则较不因公司别而有所不同，但亦随时间发生变化，初期为无效率，在民国85、86年则较具效率；(2)若考虑分配扭曲情形下，国内航空业在民国85年之前具有较高之密度经济，民国86年则趋向固定密度报酬；此整体投入要素之技术效率而官，在天空开放政策后其技术效率随时间变化而下降，但就燃油投入要素平均技术进步率而言，则其技术效率逐年增加且幅度明显；(3)航空公司因分配无效率所造成成本增加的情形相当明显；(4)准价格工具变数对成本之影响并不明显，此可能反映在此期间国内航空公司似乎并未趋向於高品质高价格之现象。

On moving base, a new initial alignment algorithm for strapdown inertial navigation system is proposed. In the algorithm, two special inertial frames, the initial-time inertial frame (i0 frame) and the initial-time SINS body inertial frame (ib0 frame), are defined and are selected as calculation reference frames, then, the calculation of initial alignment direction cosine matrix is expanded into three parts:(1) the DCM between i0 frame and the navigation frame will be easily obtained via local geographical coordinates and initial alignment time;(2) attitude updating using gyro samples gets the DCM between SINS frame and ib0 frame;(3) by explaining SINS specific force equation in SINS body frame, the relation between velocity log, accelerometer measurement and gravity acceleration is established to achieve the constant DCM from ib0 frame to i0 frame.

在运载体运动情况下，提出了一种适用于捷联惯导系初始对准的新算法，该算法以惯性空间为参考基准，即建立了初始时刻惯性坐标系（i0系）和初始时刻捷联惯组惯性坐标系（ib0系）两个惯性坐标系，将初始对准姿态矩阵的实现分解为三部分：（1）通过地理位置和初始对准时间求解i0系至导航坐标系的变换矩阵；（2）使用姿态更新算法实时计算捷联惯组相对于ib0系的变换矩阵；（3）通过惯导比力方程变形，获得测速仪辅助测量、加速度计输出和重力加速度之间的关系，从中可以求解出从ib0系至i0系的常值变换矩阵。

The poetics under the influences of Zhuang Zi's ideas formed one kind of transcendental system, and had made contributions in the problems of language and meanings; the Confucian school was on the contrary, they concerned the real time people lived in, so people's activities and the active history were the subject of poetics, and"poetry expresses the mind"was the most typical reflection of this kind of system of poetics; Plato thought that time derived from the eternal idea, he constructed his system of poetics about the "mnemonics"of the idea on the base of this concept of time; Aristotle said that poetry was the imitation of human activities, his famous theory of"mimesis"was built on the"real"activities of human beings.

庄子观念影响下的诗学，形成了一套超验的隐喻体系，在言和意问题上作出了独到的贡献；以孔子为代表的儒家学派则与此相反，关注的是人生存的现实时间，人的行动及行动的历史成为诗学的主体，"诗言志"是这一诗学体系的最典型体现；柏拉图认为时间来源于永恒的理念，他以此为基础建立了对理念的"回忆"的诗学体系；亚理斯多德认为诗应该是对人的行动的模仿，他的著名的"模仿"理论便建立在人在"实在"中的行动上。

By time-varying filtering, we realize the signal selectivity and interference suppression, especially for the signals with time-varying power spectrum. It is shown herein that conventional eigenstructure based methods are lower dimensional special case of the time-frequency subspace fitting method. The closed-form array response estimation algorithms for blind source separation in wireless communication is also developed in the dissertation by exploiting the data structure of second-order statistics of the array output in the presence of multipath. The proposed method achieves array response estimation with little constraint on signal property and propagation environment such as scatters or angular spread. Moreover, the array utilized here can be of arbitrary geometry and even uncalibrated. Since the closed-form solution is obtained, no misconvergency may occur and large amount of computation can be saved. The equivalent feed model and corresponding optimization designation are proposed to realize the downlink multi-user selective transmission. By coherent and non-coherent superposition of the electromagnetical field, multiple beams can be formed using a single array, so that each co-channel user signal is transmitted in each beam and will not interfered with each other. The proposed system scheme implements the digital beamforming and the channel allocation in the base band, therefore is suitable for the utilization of the radio software technology. The feasibility and effectiveness of the proposed model are proved by the RF experiment.

在窄带条件下，GSC－SSF方法还可以提高阵列的虚拟孔径，从而提高估计的性能；可以证明，Cyclic DOA 和SC-SSF方法可看作该方法的特例或近似； 3、提出了二维GSC－SSF方法和宽带谱相关DOA矩阵方法，利用信号的循环平稳特性解决了宽带条件下二维 DOA 估计问题，并具有阵元数少、计算量较小的特点； 4、提出了时频子空间拟合和宽带时频DOA估计算法，将联合时频分析的理论和方法引入到阵列信号的空间谱估计研究中，利用时变滤波实现信号选择性测向和干扰抑制，特别适合于谱时变信号；可以证明传统特征结构法可看作是时频子空间拟合方法的特例； 5、提出了多用户环境下阵列响应的估计方法——CARE方法，该方法对信号结构和传播参数（主要是散射源分布与角度散布）的约束较少，适用于各种几何结构的阵列甚至未校准的阵列，能够直接得到阵列响应的闭式解，因此计算量小、稳健性好，不存在收敛问题； 6、提出了针对多用户下行选择性发送的阵列等效激励模型、优化设计方法及其系统实现方案，通过空间场的相干叠加与非相干叠加使得单一阵列能够形成多个波束，并保证各波束内的用户信号各不相同且相互干扰最小；其系统方案具有在基带实现数字波束成形、信道分配并便于软件无线电实现的特点，其有效性已得到外场实测数据的证实。

According to a great deal of tests, each mechanics property and anti-cracking performance of polypropylene fiber cement stabilized macadam were investigated systemically. The main content includes:(1) The formulae of shrinkage stresses of semi-rigid base course were deduced. This thesis analyzed each influencing factor of the maximum value of shrinkage stress and the cracking rule of semi-rigid base course. At the same time, the corresponding prevention measures of the cracks were presented.

通过大量试验，对聚丙烯纤维水泥稳定碎石的各种力学性能和抗裂性能进行了系统的研究，主要内容包括：(1)推导了半刚性基层收缩应力的计算公式，对影响最大收缩应力的各种因素及半刚性基层收缩裂缝产生的规律进行了分析，提出了相应的路面裂缝防治措施。

Thirdly, it analyzes and studies in detail Surpac mechanism and the relevant concepts on constructing the model of mineral deposits and mining engineering systems according to the modeling procedure and the actual conditions of Jinchuan"s mines. Based on these:Lit points out some differences between the western countries and China in the practice of the geological data record, explores the inputting data on computers performed by more people at the same time and the method to improve constructing the data-base and finished the data-base of Jinchuan mineral deposits;2.It puts forward the steps and flow chart to construct the solid model and brings forward the scheme of "first individual then whole to set up Jinchuan mineral deposits geological model, summarizes some experiences for constructing the complicated geological ore body of the high accuracy: add control lines, add auxiliary demarcation lines +control lines, the operation of intersection, cross and incorporation between solid bodies and plane and section combination. The above-mentioned methods applied to construct the mineral deposits solid models of four mine areas in Jinchuan; 3.lt studies and presents the detailed flow chart of constructing block and grade model, analyses the workable scheme in setting up the block and grade model of main ore body for Jinchuan mineral deposits and also sets it up.

接着，按建模流程并结合公司矿山实情，详细研究、分析了Surpac构造矿床模型和采矿工程系统模型的机理、有关概念，在此基础上：(1)指出了西方国家与我国在地质数据记录习惯方面存在的一些差异，探索出多人多机同时录入、提高建库效率的方法，建立了金川矿床地质数据库；(2)研究并提出了构造实体模型的步骤和流程图及&先分后整&建立金川矿床地质体实体模型方案，总结出建立高精度复杂地质体模型几点经验：添加控制线法、添加辅助分界线+控制线法、实体间的交、叉、并运算法及平剖面图联合法，建立了金川矿床四个矿区主矿体的实体模型；(3)研究并提出了建立块模型、品位模型详细流程图，分析了建立金川矿床主矿体块模型和品位模型的可行方案，建立了金川矿床主矿体的块模型和品位模型。

Want to decide the azimuth of a mobile phone has two kinds of methods normally: The first kind of method is the GPS chip that the mobile phone uses, pass the satellitic network that in the sky covers the world and wireless communication to identify the trend with located mobile phone; The 2nd kind of method is three angular distance calculate a standard, mobile phone to around base the station issues signal, differ through calculating signal to arrive at base the time of the station will determine the mobile phone is located azimuth.

要确定一部手机的方位通常有两种方法：第一种方法是手机使用的GPS芯片，通过覆盖地球上空的卫星网络和无线通信来识别手机所处的方位；第二种方法是三角距离测算法，手机向四周的基站发出信号，通过测算信号抵达不同基站的时间来测定手机所处方位。

Our company is a wholly foreign-owned enterprise, import mainly( Taiwan, Malaysia, Dutch, Israel, French, Switzerland, S.Korean, Japan, American,etc.) The flower seed of vegetables, umbrella of the vegetables --Silver dark two-sided plastic filmses, Taiwan give birth to and grind expert with great concentration new-type organic fat liquidses that develops for many years --The invincible opponent of mending in the agricultural university of benefit, white powder louse's aphid --Glueing agricultural assets products, such as the board, three precise fertilizer,etc. in yellow, our planting base accept and plant the order, base to produce, supply the agricultural byproducts too at the same time.

我公司是一家外商独资企业，主要经营进口（台湾、马来西亚、荷兰、以色列、法国、瑞士、韩国、日本、美国等）蔬菜花卉种苗、蔬菜的保护伞--银黑双面地膜、台湾生研专家多年潜心研制的新型有机液肥--益农大补、白粉虱蚜虫的克星--黄色粘板、三精肥料等农资产品，同时我们的种植基地也接受种植订单、基地生产、供应农副产品。

The Soft-Hard Acid-Base Theory was used to interpret the experimental results for the first time, the softness of sulfur, which was a Lewis base, was changed by solvents, and the reactivity of sulfur atom was changed.

结果表明，砷化镓表面硫化层厚度与所用溶液的极性有关，用极性小的有机醇作溶剂可以得到更厚的硫钝化层。

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