Among them , the biggish import quantum of the total is marble which mainly comes from turkey , egypt , spain , and granite which mainly to come from norway , finland and saudi arabia and so on 其中，进口量较大的有大理石荒料和花岗岩荒料，其中大理石主要来自土耳其、埃及、西班牙，花岗岩主要来自挪威、芬兰和沙特阿拉伯等。
According to the regional distribution of the water vapor content and the section plane along the sounding site from east - west and south - north , there is biggish difference in the spatial distribution of the water vapor content 从绿洲上空水汽含量区域分布及沿着探空站南北向和东西向剖面看，水汽含量在空间分布上存在较大差异。
Using maximal diffusive flux to substitute actual diffusive flux , which will overestimate diffusion losing and bring biggish error for estimate of gas source rocks and resource evaluation of gas pool . 5 以往用最大扩散气量来代替实际扩散气量的算法会过高的估计天然气的扩散损失量，给气源岩评价和气藏的资源评价带来较大的误差。
But china as a developing country , its overall scientific and technological level still has a biggish gap with the advanced level in the world , and its competitiveness in science & technology remains relatively low 作为发展中国家,我国科学技术的总体水平同世界先进水平相比仍有较大差距,科技竞争实力整体上仍处于世界中等偏下发展水平的地位。
As a result , while some stayed - cables are released , the cable forces of remaining and neighboring 2 or 3 groups increase remarkably , but the others do not , the box - girder puts up the characteristic of biggish stiffness which stress variety is n ' t marked 对该桥换索不同工况的计算结果表明：卸索后的索力基本由同侧、同号剩余索和临近2 3组斜拉索所分担；主梁刚度较大，各工况主梁弯曲应力变化并不显著。
At last , by making comparison of the simulation results between uninstalled abs and installed abs , the biggish bestead of abs to braking ability and direction stability of vehicles was certified . it proffers a theoretical thereunder to in general use abs in vehicles 最后，本文对转弯制动时未安装abs和安装abs两种情况的仿真结果作了比较，证明了abs对提高车辆的制动性和操纵稳定性有很大帮助，为abs在汽车上的普遍安装提供了理论依据。
In the present , there hav n ' t always correlative literatures to reclaim the remaining heat of the rotative water in the electricity plant using the heat pump ' s technology at home , the study in this paper can develop the technical area of heat pump ' s application , it has biggish learned value and applied value 目前，国内尚未见到利用热泵技术回收电厂循环水余热的相关文献资料，本文的研究可拓展热泵应用的技术领域，具有较大的学术价值和实用价值
The optimized section area considering reliability is in some degree different from that without it , which can be applied in practice . the examples of three bar truss and parallel chord truss with biggish span are analyzed on the conditions of reliability or not , the results of which prove the model and method proposed in this paper are feasible 本文分别从考虑可靠度约束和不考虑可靠度约束的情况下对三杆桁架，和跨度较大的平行弦桁架进行算例分析；并将两种算法结果进行比较，结果证明本文模型与方法是可行的和现实的。
Become a kind of new electronics circuit - current - mode circuit . it is replacing the traditional design method of the voltage - mode in the high frequency high - speed signal processing realm 。 this thesis mainly discussed the modified second - generation current conveyors based on the current - mode kinds of new cuicuit components , they are stronger modified standard current - mode parts in fuctions on this foundation . mainly including the modified differential difference current conveyor ( mddccii ) 、 the fully balanced second generation current conveyor ( fbccii ) 、 ( full balances ) four - terminal floating nullor ( fbftfn ) and the current differencing buffered amplifier ( cdba ) , they are all function very strong standard current - mode parts , they all can provide some circuit functions of better than general operation amplifier , because they have the voltage importation and the current importation , therefore use it since can carry out the voltage - mode signal processing circuit expediently , can also carry out the current - mode signal processing circuit expediently , and have to increase the benefit bandwidth to accumulate more widely than the voltage - mode , but have their advantages more according to the current - mode filter of the modified current conveyor , because it constitutes in brief , the filter wave function is stronger and they are better than in general use operation amplifier of many advantages , be easy to composing for example 、 high speed 、 frequency bandwidth 、 the power supply voltage requests low 、 consume small , the impedance is different from etc . advantages , otherwise they have biggish dynamic range , and flexible circuit synthesize , so they are the best active parts 从第二代电流传输器ccii入手,重点研究了以下几种改进型的第二代电流传输器:改进的差动差分电流传输器mddccii 、全平衡第二代电流传输器fbccii 、多输出四端浮地零器ftfn 、全平衡四端浮地零器fbftfn 、电流差分缓冲放大器cdba的电路结构及其模型。然后在此基础上系统地研究了基于这几种改进型的第二代电流传输器的滤波器的设计方法,主要方法和结果如下:利用mddccii设计了差分式连续时间电流模式低通、带通滤波器;电流模式跳耦结构考尔低通滤波器;利用fbccii设计了带通二阶节滤波器及电流模式双二阶通用滤波器;设计了基于多输出端ftfn的电流模式二阶通用滤波器电路;通过数字化开关选择的基于fbftfn的电流模式通用滤波器;设计了基于最少个数电流缓冲放大器(两个cdba )的多功能通用电流模式滤波器及其在非理想因素情况下分析。设计滤波器的主要方法是采用级联设计、运算模拟(信号流图法)和反馈设计(跳耦法) 。
The meaning of cqc ( t ) algorithm is the difference in time domain between the peak value location in time axis of input earthquake and model response of structure , which is called delay time . through the delay time calculating of a series of oscillators with different damp ratio and natural vibration frequency , it is found that it will bring biggish error if the cqc algorithm applied on the structure which has long period , and the time dependent cqc ( t ) algorithm could solve the problem easily Cqc ( t )方法的意义在于输入地震动峰值与结构模态响应峰值在时间轴上的时间差,我们称之为延迟时间,通过计算具有不同周期和阻尼比结构的延迟时间,发现对于自振周期比较长的结构, cqc方法会带来比较大的误差,而基于时程的cqc ( t )方法能够解决这个问题。
