无系统的
- 与 无系统的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on the practice of nectarine breeding,the systematical inheritance of peel tomenta, flesh color ,pollen fertility and flavor of parents and their hybridization offsprings was analysed.
结合油桃育种实践,对亲本、杂交后代的果皮茸毛、肉色、花粉育性、果实风味等性状进行了系统遗传分析,结果进一步证实了果皮茸毛、肉色、花粉育性3个性状各由1对等位基因控制,其中果皮有茸毛对无茸毛、白肉对黄肉、花粉可育对败育均呈完全显性,且这3对等位基因分别呈独立遗传,无互作效应;选择甜风味的品种作亲本,杂交后代出现甜油桃单株的比例较高。
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Therefore, since the early 1960s, countries around the world have been carried out to the overall rail-bed, or curing alternative granular ballast of the various Ballastless track structure of the system, some countries have Ballastless track as the main high-speed railway Track structure of a comprehensive application.
因此,自上世纪六十年代初,世界各国铁路相继开展以整体式或固化道床替代散粒体道碴的各类无碴轨道结构的系统研究,一些国家已把无碴轨道作为高速铁路的主要轨道结构型式全面推广应用。
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ZEBASE includes samples of singlets, doublets, achromats, triplets, eyepieces, magnifiers, afocal systems, beam expanders, air spaced triplets, inverse telephotos, retrofocus, wide angles, telephotos, Petzval lenses, microscope objectives, double Gauss lenses, endoscopes, periscopes, riflescopes, mirror telescopes, scanning lenses, projection lenses, zoom lenses, and more.
ZEBASE包含简单的单透镜、双透镜、复消色差透镜、库克透镜、目镜、放大镜、和无焦系统、光束放大器、AIR SPACED的库克透镜、远心系统、广角镜头、Petzval透镜、显微镜物镜、双高斯镜头、内窥镜、展望镜头、机枪瞄准镜、发射式望远镜、扫描镜头、投影镜头、变焦镜头等等。
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Electric submersible screw pump are screw pump and the electric submersible pump combination is a very applicable to horizontal wells downhole fluid lift system, belong to non-rod pump systems, to avoid the tube, rod friction wear and tear.
电潜螺杆泵是螺杆泵和电潜泵的组合,是一种非常适用于水平井的井下流体提升系统,属于无杆泵系统,避免了管、杆摩擦损耗。
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Another way to limit I〓 is using fault current limiters , which under normal operation have negligible influence on a power system, but in case of a fault will limit I〓 to several times of the normal current.
限制短路电流的另一方法是在电力系统中加入限流器,它在正常工作状态下对系统无影响,而当发生短路故障时,可以迅速将短路电流限制在额定值的几倍范围内。
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First, by the allocation of irrigation water directly into the ditch outlet Xiaqi, achieve no water loss, greatly improve the utilization of water; are two irrigation systems, replace the pipe with water furrow, not square, and the right to re-use, reducing the irrigation investment; Three is the use of the gate with the outlet opening to adjust a constant and accurate control of flow into the trench plot, for different soil and different groove specifications Xiaqi can greatly improve irrigation uniformity; four gates are porous pipe irrigation system for the flow tubes, and the blind to cross the flow tube as compared to the wall can reduce the work under stress, and reduce the damage to the opportunity to prolong the service life of thin-walled tube; are five gates to facilitate the installation of irrigation systems, pipes, and, upon request, to fight孔安outlet assembly to ensure the accuracy of positioning with the outlet.
一是灌溉水经配水口直接进入沟畦,实现无输水损失,极大地提高了水的利用率;二是管灌溉系统代替配水垄沟,不占地,且右重复使用,降低了灌溉投资;三是利用配水口的闸板开度来调节准确恒定地控制进入沟畦的流量,适用于不同土质和规格不同的沟畦,可大大提高灌水均匀度;四是闸管灌溉系统为多孔出流管,与等过流量的盲管相比,可降低管壁承受的工作压力,并减少受损机会,从而延长薄壁管的使用寿命;五是闸管灌溉系统安装方便,并可根据要求打孔安装配水口,确保配水口定位的准确性。
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Reactive power optimization of power system is not only an effective means to ensure power system operation securely and economically, but also one of the most important methods to improve the voltage quality and reduce the transmission loss.
电力系统无功优化是保证电力系统安全、经济运行的一项有效手段,是降低网络损耗、提高电压质量的重要措施。
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The genetic algorithm is a kind of self-adapting optimization method based on the mechanics of natural selection and evolution.
本文在总结常用的电力系统无功电压优化方法的基础上,建立了以网损、电压质量和无功潮流分布为目标函数的数学模型。
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As the field of microwave communications professional manufacturer of passive components, Bo Xiang Electronics since its inception is committed to research and development, production and marketing of power splitter, coupler, Combiner, diplexers, filters, power load, such as small and medium-sized 6 Series more than 100 kinds of products, widely used in GSM, CDMA, PHS and other communications networks a variety of distribution systems to low-loss, wideband, high reliability, waterproof dust characterized, its production, processing capability, stable performance , delivered quickly and cost-effective, at present is the biggest kind of passive components, one of professional supplier in 2005, output value of more than 6000 million.
作为微波通信领域的无源器件专业制造商,博翔电子自成立以来致力于研发、生产和销售功分器、耦合器、合路器、双工器、滤波器、中小功率负载等6个系列100多种产品,广泛应用于GSM、CDMA、小灵通等通讯网络的各种分布系统中,以低损耗、宽频带、高可靠性、防水防尘为特点,其生产、加工能力强、性能稳定、交付迅速、性价比高,目前是国内该类无源器件最大的专业供应商之一,2005年产值6000多万元。
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Perfect tail gas treatment system (rapid cooling, neutralization and dry type absorption) to ensure no discharge of smoke gas, which otherwise will cause secondary pollution
f。完善的尾气处理系统,确保系统无二次污染的烟气排放。
- 推荐网络例句
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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.
他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。
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In slot 2 in your bag put wrapping paper, quantity does not matter in this case.
在你的书包里槽2把包装纸、数量无关紧要。
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Store this product in a sealed, lightproof, dry and cool place.
密封,遮光,置阴凉干燥处。