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Case law rule allows unilateral withdrawals of inadvertently erroneous bids from the bidder. U.S. federal procurement system, deriving from contracting law, permits bid correction or withdrawal before award and reformation or rescindment after award under certain circumstances.

於美国契约法下,判例上即允许投标厂商有主张单方计算错误而撤销契约,而美国联邦采购制度主要之规定均系依循美国契约法而来,亦在一定要件下允许厂商於决标前可更正投标或撤销投标;於决标后,亦可重新形成契约或撤销契约。

Citric acid can reduce the Cr(superscript 6+) in sodium dichromate into Cr(superscript 3+) and react with to yield citric acid chromium chelate at 75℃.

在75℃下用柠檬酸将重铬酸钠中的Cr(上标 6+)还原为Cr(上标 3+),同时与Cr(上标 3+)发生螯合反应,生成柠檬酸铬螯合物。

The main purpose of the present paper is to obtain the relation between the abstract presentation of Euclidean objectivity and its component representation with respect to the general curvilinear coordinate systems with a relative rigid motion under a fixed frame of reference, so that the tensor representation of Euclidean objective quantity has its component form.

建立了欧几里德标架无关性的一般表述与某一参考标架\phi 下作相对刚体运动的一般曲线坐标、分量表述之间的关系,从而使欧几里德标架无关性的张量表述有相应的分量表述形式。

Denitrifying phosphorus removal bacteria is a kind of bacteria that can release phosphorus under anaerobic condition and take up phosphorus under anoxic conditions while simultaneous denitrify nitrate or nitrite.

反硝化聚磷菌是一类能够在厌氧状态下释磷,缺氧存在硝酸盐NO3(上标-或亚硝酸盐NO2(上标-的情况下聚磷,并同时反硝化的聚磷菌。

Gravure press is not discharge on down during the mode of production, the per-color business card printing and membership card after harvest cylindrical insertreleased, offline after the subject with a single eyefor a cross-cutting machine rolled business card printing and membership card making for easier and more precise printing long broken sected collection, and then set the broken sected collected leaflets business card printing and membership card making products in spinons convex, indentation, die-cutting, waste, collection, testing, packaging; business card printing and membership card making products for stamping or compact label positioning easy-care, and the increase in the operation, the disadvantage is that the above process, the operation covers an area of large plant, to make more, and sometimes the drum to the materials offline operation in cross-cutting precision |interrupted Zhang superstandard, it will be a large number of categorizing people and a large area of the workspace.

凹印机是采用上料下料不停机的生产方式,进行逐色制卡和会员卡制作后收成卷筒状取下,离线后通过一台识标横切机把卷状制卡和会员卡制作品以单幅印长断切收集,再将断切收集来的单张制卡和会员卡制作品进行棘凸、压痕、模切、剔废、收集、检验、包装;制卡和会员卡制作品如需要烫金或镭射标定位烫,还需增加工序,以上工艺缺点是工序多,占地面积大,使用机台多、人员多,有时卷筒印材离线作业在横切过程中断张精度超标,还需大量的分检人员和大面积的工作空间。

Although the accuracy in meterological forecast of tropical cyclones has been distinctly improved, it is still a difficult problem confronting masters and anti-typhoon team leaders of the companies how to steer clear of typhoon reasonably and safely in case that the actual resistance to typhoon is strong enough, the sea area wide enough, and the time permitting ; to avoid unreasonable deviation,anchoring for shelter, blindly rushing onto her path,being involved in storm area,even into the the center of typhoon; under the limitation of the condition of the sea area and time.how to take correct meassures to escape , such as navigating with wind or windward in bias angle, slowing down, anchoring, berthing alongside the warf, mooring to buoy,etc.

传统的解决办法是,将台风中心的预报位置和本船的船位点绘在《台风位置标示图》上,研究本船与台风的相对位置以及相互间动态的发展态势,考虑各种因素的影响并留有充分余地,在小比例尺海图上用几何相对运动标绘的方法作图绘算出本船应采取的避台航向。本文所讨论的就是为迅速和较为精确地解决以上点绘和相对运动标绘的问题,在考虑了各种因素的影响并留有充分余地的情况下,在全方位范围内搜索安全航向,对本船与台风的相对位置以及两者之间的动态发展态势作出预报,并给出船长最关心的、对其作出避台决策至关重要的一组数据和直观图形,帮助使用者及早制订科学合理的避抗预案,及时果断地采取正确有效的避抗措施,解决避台决策的实际问题而设计的一个计算机标绘系统。

Comparing with the result of methyl iodide in intense laser field, some differences are observed:(1) at the same laser field intensity, the highest charged fragment ion of methyl bromide was Br(superscript 3+), lower than I(superscript 6+) of methyl iodide;(2) the dehydrogenation channel was observed in the multiphoton dissociation or Coulomb explosion of methyl bromide, but was not observed in the case of methyl iodide;(3) HBr(superscript +) was observed, but there was no similar channel in the case of methyl iodide;(4) for methyl bromide, the valid charge distance of Coulomb explosion increases with the product of p and q; while in the case of methyl iodide, the distance remained almost the same;(5) the producing channel of CH(superscript + subscript m)(m=0, 1, 2) is different from the ionization-dissociation of methyl iodide in which the stepwise dissociation of CH3(superscript +) was thought to be the main channel, CH(superscript + subscript m)(m=0, 1, 2) of methyl bromide are mainly from the products of the direct dissociation of the dehydrogenated parent ions instead of the stepwise dissociation of CH3(superscript +).

与碘甲烷在强场中的实验结果对比发现:(1)在相同的激光场强下,碘甲烷电离解离的最高价碎片离子为I(上标 6+)而溴甲烷为Br(上标 3+);(2)溴甲烷质谱中存在母体离子的脱氢产物CHBr和CHBr(上标 2+),而对于碘甲烷,没有检测到这些通道,C-I键首先断开;(3)质谱中存在H^79Br和H^81Br,而碘甲烷的电离解离中不存在HI产物;(4)溴甲烷库仑两体爆炸的有效电荷间距随着两碎片电荷乘积的增大而增大,而对于碘甲烷此间距几乎不随电荷乘积变化;(5)CH(m=0, 1, 2)的主要生成通道可能与碘甲烷不同,不是来自CH3的顺序脱氢,而是来自脱氢母体离子的直接解离。

At the same time, author gain the model about chevrons blockage in the different traffic conditions, it can validate the chevrons setting spacing for the certain traffic condition and linetype.

同时文中还得出了在不同交通状况下诱导标遮挡情况的计算模型,可以对具体的交通状况和道路线形下的诱导标设置间距进行验证。

However, there were no differences in accommodative responses between emmetropes and stable myopes. Conclusion When the accommodative targets are Chinese characters presented in RSVP to imitate a reading task requiring little attention, positive voluntary accommodation decreases so the overall accommodative response decreases.

本研究将在正视和近视研究对象中,利用以上三种视标作为调节视标,采用客观调节反应测量方法,探讨注视状态和阅读状态下调节反应量的差异,为研究阅读状态下其他各项视功能参数奠定基础。

The numbers of clusters made up of 1551 and 1541 bonded pairs representing the non-crystal structure occupy predominate position and the small numbers of clusters made up of 1431, 1661 and 1441 bonded pairs coexist in the non-crystal system at 4×10〓K/s cooling rate, thus there exist a large number of icosahedra clusters in the non-crystal system. The numbers of clusters made up of 1421 bonded pairs corresponding to the fcc-like structure occupy predominate position and the small numbers of clusters made up of 1422 and 1551 bonded pairs coexist in the crystal system during the 4×10〓K/s cooling process, thus the system can form the regular fcc-like structure.

在4×10〓K/s的冷速下,标征体系非晶结构的五重对称键型1551和1541所形成的小团簇数量在非晶体系中占主导位置,同时还存在少量的1431、1441和1661等其它键型形成的小团簇,这样,体系中含有大量的二十面体团簇结构;在4×10〓K/s的冷速下,标征面心立方结构的1421键型所形成的小团簇数量在晶体中占第一位,同时还存在一定量的1422、1441和1661等其它类型的键对所形成的团簇,体系最终形成面心立方结构。

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推荐网络例句

I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。