双

Insein Bridge in Myanmar undertaken by the Company is a double tower, double cable plane, and three-span steel truss cable-stayed bridge with the full length of 581m .

公司具有承接各种大型钢桁架桥的制造、施工能力，所承建的最长的钢桁架桥为双向双车道，全桥总长1200米；承建的缅甸英申大桥全长581米，为双塔双索面三跨钢桁斜拉桥；承建的桥面最宽的桥梁为缅甸的玛哈邦多拉大桥，为双向六车道的双塔双索面斜拉桥；承建的钢桁悬索桥最大跨径500米，双向双车道。

At last, the article advanced that it was necessary to change the macroscopical policy according to historical experience and macroscopical conditions and gave some suggestions about carrying our double moderate policy from the point of view of fiscal policy, monetary policy and the cooperative modes of the two policies.

最后，结合历史经验和我国宏观经济形势的新变化提出向双稳健政策转变的必要性，并从财政政策方面、货币政策方面和两大政策搭配方面给出了实施双稳健政策的具体建议。

The acid base double point potentiometric method was improved.

改进了酸碱双点电位滴定法，导出了不受双点体积差影响的精确计算公式，并对其准确度进行了探讨。

Per annum in line through the China Certification Committee for packaging quality system certification and product certification "double certification", product quality authoritative department recognized domestic counterparts are the first through the "double certification" of the enterprise.

公司于200年率行通过中国包装认证委员会质量体系认证和产品认证"双认证"，产品质量得到权威部门的认可，是国内同行中最早通过"双认证"的企业。

Main Product "Double Rabbit" brand of rice for green food,"Double Rabbit" series of rice through the National Product 2005-2008 annual National exempt.

主要产品"双兔"牌大米为绿色食品，"双兔"系列大米通过国家2005-2008年度全国免检产品。

Plenty of samples is provided for training BP neural network by traditional design method and the topology structure is built using forward propagating data and backward propagating error data, which is applied to optimal design of parallel double broken line pulley in order to accomplish the mapping between main parameter of hoisting mechanism of gantry crane and the related parameters of parallel double broken line pulley.

利用传统的设计方法为BP神经网络的学习提供足够样本集，然后通过正向传播和误差反向传播建立BP神经网络的拓扑结构，并将其应用于平行双折线卷筒的智能设计中，以完成龙门起重机起升机构主要设计参数与平行双折线卷筒相关参数的映射，提高设计的质量和效率，为龙门起重机关键零部件的智能设计提供一个新的途径。

With this model, we achieve insight into the ion momentum distribution under the combined influence of a two-center Coulomb potential and an intense laser field, and our result shows the significant influence of molecular alignment on the ratio between double and single ionization rate.

研究中我们考察了双中心库仑势及外加场共同作用下的离子动量分布，计算结果同样给出了分子取向对双电离和单电离比率的影响。

Compare yield of maize planted double line at one width ridge to that of check ,ear length ,No. of ear of kernel ,100-kernel weight and ratio of double ear were increased .

在产量性状上，大垄双行种植的玉米与对照相比，穗长增加，秃尖长减小，每穗粒数、百粒重和双穗率都增加，空秆率减少。

By using Yb 3+ doped double clad fiber with rectangular inner cladding and a set of back cavity mirrors with different transmission ratio , the double clad fiber lasers are constructed.

采用自行研制的内包层为矩形的掺Yb3 +双包层石英光纤，以透射率不同的一组二向色镜为后腔镜构成了双包层光纤激光器。

Then double refraction and double reflection along the sequential interfaces in a crystal are discussed.

并讨论了光在晶体内沿多个界面的连续双折射双反射。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。