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Most of Chinese GPR have not as good performances as ones abroad. In the paper, the GPR system developed by us employs several optimization techniques to enhance the system performances, including antenna, sampling-hold circuit, orientation wheel, function of system software, multithreading, and signal processing algorithms. As the result the system works more well with these techniques, and its azimuth and distance resolution of 10 cm has been achieved with detection depth of more than 50 cm.
本文根据探地雷达系统工作原理,在电子科技大学探地雷达系统样机研制的基础上采用了各种有效的优化技术,包括探测前端、采样保持电路的优化,定位轮、目标定位、多线程技术的应用,数据采集处理和控制软件功能的拓展、各种有效的信号预处理算法的应用等,显著提高了系统的探测性能和增强了探测效果,使得系统方位、距离分辨率均达到了10cm,探测深度大于50cm,其性能指标达到国外先进水平,为进一步的实用化奠定了重要的基础。
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Especially,in the medium of 1/2MS + NAA 0.1 mg/L, the regrown shoots without roots of" Baltimore oriole "induction rate and the number of the roots both are the best, roots induction rate reached to 100% in 17 days.
红运&在0.1mg/L NAA的培养基上,生根数量和生根率都最好,17天生根率达到了100%;而&奶油卷在0.05mg/LNAA的培养基上,21天生根率达到100%。
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The results show that the differences of beet root production, sugar and sugar production in different species and location have reached significant levels (F.01), variety and location of interaction effects are achieved very significant (F.01) or significant levels (F.05); Considered root production, sugar and sugar production and stability, ZM203, KWS9415 are better for the stability of high-yielding varieties, D0316, ZM203 are better for the stability of the high-sugar varieties, ZM201 for the stability of a high-yielding sugar, 2003-8 varieties is good for the stability of high-yielding sugar deviation species.
结果表明:甜菜块根产量、含糖率和产量糖在不同品种和地点的差异都达到极显著水平(F.01),品种与地点互作效应都达到极显著(F.01)或显著水平(F.05);综合考虑块根产量、含糖率和产量糖的表现和稳定性,ZM203、KWS9415为高产稳定性较好的品种,D0316、ZM203为高糖稳定性较好的品种,ZM201为高产糖量稳定性较好的品种,2003-8为高产糖量稳定性偏差的品种。
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The results show that using double insurance processthe hardness of thread area of bevel driving pinion can fully meet the need of technology requirement of the product with stable qualitybut its production costs is higherand that using induction annealingthe hardness of thread area can also meet the require...
结果表明:采用双重保险工艺处理的主动圆锥齿轮尾部螺纹硬度完全可以达到产品技术要求,质量稳定可靠,但成本较高;采用感应退火工艺,尾部螺纹硬度可以达到技术要求,其特点是节能、生产效率高,但需要定期对尾部螺纹进行力学性能检测。
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The hard-shell case sports the classic Speck quality down to the blood-colored rubberized interior finish to complete the aesthetic.
这个手机袋外面用硬皮制造,并简化PC供应和升级以达到Speck公司产品的一贯优秀品质,并简化PC供应和升级内部经过橡胶处理,(不使用分部类或继承机制),能够在最新版本的达到视觉上的完美统一。
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The system of measuring and controlling temperature and pressure that has been developed by Visual Basic Language based on the data acquisition card PCL-818HG is successfully applied in the extruding and blowing mold to measure the pressure in the extruding process and the part cold and solidification temperature and control the temperature of the extruding machine in real time.
在挤出的过程中,有加热、散热和产生热量的过程,在稳定的工作情况下,所有这些热量达到平衡从而使挤出物料的温度达到某一动态平衡,而压力对于物料的流变性能来说也是重要的影响因素,因此挤出过程的温度和压力很重要,需要实时测量。
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Base Station type Software versionTypes of carrier frequency board adoptedTypes of combiner adoptedWhether had obtained the network license or notIndoor type or outdoor type Whether the master port is separated from the remote-port The maximum carrier frequency capacity of single cabinet The maximum supportable sector numbers of single cabinetWhether it is dual-carrier frequency board or notMust it be paired configuration if it's dual-carrier frequency board (namely, the type of single carrier frequency station could only configure the dual-carrier frequency on hardware) The maximum achievable configuration of a single station of the single cabinetReceiver sensitivity The maximum expand capacity of a single base station (the maximum number of TRX in configuration / the number of cabinets which is required)(fill in according with the three sectors) Top box transmitted power (given separately a grade one combine and a grade two combine) The maximum output power of amplifier (voice, a single logical carrier frequency) The maximum output power of amplifier (EGPRS, a single logical carrier frequency)Whether it has tower-interfaceWhether it has built-in lightning protectionWhether it support the ultra-long cover / whether it need for software support (give simple description that how hardware and software could achieve this) The supporting condition of EGSM (it should be supported including by the carrier frequency, combiner) Dual-band carrier wave (whether it supports the mixed use of 900 M/1800M in the same cabinet) The commonality of duplicate parts Whether it can built-in transmission unitThe single cabinet size (high × width × deep) Installation method Whether it can place against the wallThe basic frame full-configured weight and the supportable number of carrier frequencyThe expansion frame full-configured weight and the supportable number of carrier frequency
基站型号软件版本号采用载频板型号采用合路器型号是否已取得入网许可室内型or室外型是否是主远端分离单机柜最大载频容量单机柜最大支持的扇区数是否是双载频板如是双载频板,是否必须成对配置(即单载频站型只能硬件配置双载频)单机柜可达到的单站最大配置接收机灵敏度单基站最大扩展能力(最大配置TRX数/需机柜数)(按3扇区填写)机顶发射功率(分别给出一级合路与两级合路)功放最大输出功率功放最大输出功率(EGPRS,单个逻辑载频)有无塔放接口有无内置避雷装置是否支持超远覆盖/是否需要软件支持(简单描述软硬件如何实现)EGSM支持情况(包括载频、合路器均应支持)双频段载波(是否支持900M/1800M在同一机柜内混合使用)备件通用性是否可以内置传输单元单机柜尺寸安装方式可否靠墙放置基本架满配重量及支持载频数扩容架满配重量及支持载频数是否支持基本架与扩容架跨扇区满配功耗满配时重量供电方式机柜进出线方式合路器损耗合路能力:几合一单扇区最大支持几载频合路到一副天线/采用几个合路器单扇区载频达到需要增加一副天线时,是否支持两级合路换以不增加天线如两级合路插损为是否支持基带跳频和合成跳频每单个合路器在从低载频数向高载频数扩容时,是否还需要增加硬件可用性指标MTBFMTTR系统中断服务时间硬件是否支持EGPRS本次报价软件版本号开始支持EGPRS的软件版本号其他特点注: 1 应分别填写出来按照本次报价要求所采用的全部BTS型号和采用的合路器型号 2 列出本报价要求的全部室外型基站与高功放单元
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Building in the western region's largest energy-saving wood-based panel production enterprises, artificial board production scale has reached the country's third, the western First, a number of straw fiberboard production capacity to reach Asia's first, is the western region's largest production base of fibreboard.
西部地区最大的能源建设节能人造板生产企业,人造板生产规模已达到全国第三,西部第一,秸秆纤维板生产一些能力将达到亚洲第一,是西部地区最大的纤维板生产基地。
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By November 19 closing price since the October stock market value of holdings major shareholders have reached 1.689 billion yuan, the book profit reached 141 million yuan float.
到11月19日收盘价10月以来,持有的股票市值已经达到大股东十六万八千九百点零零零万元,这本书利润达到141000000元浮动。
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Products to sponge cadmium, cadmium oxide, cadmium nitrate, sulphate cadmium, nickel foam, metal cadmium powder as the main products of the coexistence of a variety of operations, monthly production reached: 200 tons of cadmium oxide, cadmium off more than 50 tons, cadmium powder 30 Tons, 300 tons of nitric acid cadmium, nickel foam 12,000 square meters, and so on, the annual turnover to reach 36 million.
产品以海绵镉、氧化镉、硝酸镉、硫酸镉、发泡镍、金属镉粉为主要产品的多种经营方式并存,月产量达到:氧化镉200吨、海面镉50多吨、镉粉30多吨、硝酸镉300吨、发泡镍12000平方米等等,年营业以达到3600万。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。