至点

If the fluid flow separated from the sharp edge of the rearward steps reattached in the effective region, the reseparated point would occur downstream of the cross section of the cylinder and the drag would be reduced.

对再附流动的有限级数解表明，由有效再附区开始的再附边界层能够保持其边界层状态，发展至柱面最大迎流截面之后的流动再分离点。

The windings in the valve side adopt prolonged delta connection providing the circuit for three-multiple harmonic currents, and implementing 12-pulse converter through fit ratio; this connection between the common winding and prolonged winding can decrease the current impact when phase conversion takes place.

该换流变压器阀侧绕组采用延边三角形接线，为3倍次谐波电流提供通路；通过匝比配合，实现12脉波换流；其延边绕组与公共绕组构成自耦变压器接线，可减少换流器换向时的电流冲击；在公共绕组上连接滤波支路，并调至谐振点，配之以变压器巧妙的零阻抗设计，可以在阀侧实现无功补偿，可实现网侧绕组中无5、7、11、13次特征谐波，即谐波屏蔽。

Will be opened EMUs, Nanjing and Hangzhou, point-to-point run-time for 59 minutes, than the existing Bypass Shanghai motor car to save three hours.

届时将开通动车组，南京至杭州点到点的运行时间为59分钟，比现有绕道上海的动车节约3小时。

It is an important activity of the urban forestry policy project co-funded by European Community to organize a study tour on urban forestry in Europe for Chinese experts. According to the project plan, a group of 10 Chinese experts toured 4 northern European countries, Finland, Estonia, Sweden and Denmark, from June 20th to July 2nd in 2006, aiming to study urban forestry in these countries. Participants of the study tour gained more practical knowledge of urban forestry planning, the establishment of fores...

2006年6月20日至7月2日，中国专家考察团通过对芬兰、爱沙尼亚、瑞典、丹麦等北欧四国的城市林业考察，全面了解了这些国家在城市林业规划、森林公园和户外教育基地建设、屋顶绿化、工业遗弃地的森林植被恢复、社会参与城市林业建设、城市森林研究及城市间的合作等方面的理论、实践和经验，最后结合中国森林城市建设实际，总结了三点启示。

This technique is to make a device to instead those transmitters and reduce the need in pressure gauges. Using the electronic valve and flexible tube to construct the control panel is effective to connect the single pressure gauge with every sensor point in ventilation duct.

利用软管将欲量测之管段的压力导引到控制箱内，并将所有导引来的静压分别安装在一组并联的各电磁阀上，再将所有的动压分别安装在另一组并联的各电磁阀上，而该两组并联电磁阀的底部各安装一根连通管连结至单一差压计的高低压两端，并利用控制组件切换各电磁阀的启闭以达到多点压力监测切换的目的。

This technique is to make a device to instead those transmitters and reduce the need in pressure gauges. Using the electronic valve and flexible tube to construct the control panel is effective to connect the single pressure gauge with every sensor point in ventilation duct.

利用软管将欲量测之管段的压力导引到控制箱内，并将所有导引来的静压分别安装在一组并联的各电磁阀上，再将所有的动压分别安装在另一组并联的各电磁阀上，而该两组并联电磁阀的底部各安装一根连通管连结至单一差压计的高低压两端，并利用控制元件切换各电磁阀的启闭以达到多点压力监测切换的目的。

The paper gives stiffness matrix and mass matrix in finite element analysis of the ground vibration problem caused by track traffic by using three-dimension finite element method. Because three-dimension finite element analysis is very difficult, it is transmitted into a quadratic programming, which can be calculated by neural network.

本文融合神经网络技术和遗传算法，对轨道交通引起的地面振动进行了正分析和反演，并利用计算机技术实现了地面振动的三维动画模拟，这主要包括：(1)研究了压缩映射遗传算法，利用Banach空间的不动点定理证明了压缩映射遗传算法可以收敛到全局最优值，弥补了标准遗传算法不能收敛至全局最优值的不足。

SunRed has its own bonded warehouse and haulages most of the ports in China. SunRed established its nation-wide sea freight service net-work through its more than 72 branches with Qingdao as the center in North China, Shanghai in East China and Shenzhen in South China.

祺红集团在全国各地主要港口城市都拥有自己的监管仓库和车队，通过国内72个运营点形成华北地区以青岛港为枢纽，华东地区以上海港为枢纽，华南地区以深圳港为枢纽的覆盖全国的海运服务网络，在西安、郑州、武汉、成都等地开展产地装箱至世界各地的铁海联运、河海联运业务，搭建起内陆出口货物的便捷通道。

The purpose of this study was to examine the maximum value of pulling-force, momentum, ground reaction force, net muscle joint moment, the changes of muscle power on raising movement after sitting by different sitting distance patterns, which was measured from feet to a supposed vertical point on hip joint (25cm.35cm.45cm) during Tug-of-War.

中文摘要本研究针对拔河坐地起身动作，以足跟至髋关节点垂直地面位置的不同坐地距离（25公分、35公分、45公分）探讨起身动作之最大拉力值、冲量值、地面反作用力、净肌肉力矩、肌肉功率的变化，藉以了解坐地距离之变化对起身动作之生物力学影响。

Amount of stamp duty on house prices of 0.5%, when paid in the transaction authentication; transaction fee is generally 2.5 yuan per square meter, but also when the payment transaction authentication; ownership registration fee of 100 yuan to 200 yuan; allocation plan costs 35 yuan to 130 yuan.

数额印花税房价的0.5 ％时，支付交易认证；交易费用一般二点五元每平方米，而且还支付交易时，身份验证；所有权登记费100元到200元；分配计划成本35元至130元。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。