电磁的

The preparation of electromagnetic shielding concrete adulterated short carbon fibers and graphite respectively have been introduced in this paper.

介绍了分别掺杂短碳纤维和石墨的电磁屏蔽混凝土的制备，研究了短碳纤维和石墨的含量对混凝土低频电磁屏蔽效能的影响，最后分析了短碳纤维的加入对石墨混凝土电磁屏蔽性能的影响机理，为将来设计高性能低频电磁屏蔽混凝土提供了依据。

According to the requirements of electromagnetic compatibility standards for the operation condition of equipment under test, two kinds of novel auxiliary equipment, low noise recorder of the information of the operation condition of equipment and integrated EMC electrical parameter test equipment, were introduced.

根据电磁兼容检测标准中对待测物使用工况的要求，介绍了两种配合现有电磁兼容测量系统的辅助装置：低噪声工况信息记录仪和电磁兼容综合电参量测试仪。

Effects of electromagnetic materials and coil structure on high-speed, powerful solenoid valves were studied.

研究了电磁材料和线圈结构等因素对高速电磁阀的影响，并采用有限单元法对电磁阀的特性进行了分析计算。

At first, the paper analyses the electromagnetic environment of the war field and sets up the model of electromagnetic environment simply. There are two methods that can simulate the electromagnetic environment. The one is signal simulation, and the second is functional simulation.

本文首先分析了战场的电磁环境，对电磁环境进行了简化建模；接着介绍了电磁环境仿真的两种方法，一是信号仿真，另一为功能仿真。

Based on the EMI coupling paths model of the off-line PWM switched mode power supply, sensitivity analysis of the component parameters in the model can be conducted and the key component parameters will be found. This method can be used in the EMC debugging and the EMI forecasting of power electronics equipment.

在本文对离线式PWM开关电源电磁干扰传播通道所建模型基础上，可以实现对模型中各元件参数灵敏度的分析，找到关键影响参数，为开关电源电磁兼容调试和电磁干扰预测提供有效的指导。

Electromagnetic forming is one of the high-rate forming technologies with wide applications. With the development of EMF process, the perfect theoretical study is exigently needed to predict the final shape of parts, instruct and verify the forming system design.

电磁成形是应用广泛高速率成形技术之一，随着电磁成形工艺应用的发展，越来越需要完善的理论研究来指导和检验电磁成形系统及工艺设计、预测工件最终形状。

A new method of improving shift quality of AMT with the fuel stop valve was indicated, the efforts to the shift quality at different input shaft and output shaft of clutch were analyzed, the control strategy was established, and the test on one kind of AMT heavy truck was conducted. The test result showed that it could decrease the rotational speed between the drive part and the driven part when clutch was locked, and improve the shift quality of AMT with control of the fuel stop valve.

提出了利用断油电磁阀改善AMT换挡品质的方法，分析了断油电磁阀不同断油和供油时刻对换挡品质的影响，制定了断油电磁阀的控制策略，并在装有AMT的某重型载货汽车上进行了试验，试验结果表明，换挡过程中通过控制断油电磁阀，可以减小离合器接合时主、被动部分的转速差，显著改善了AMT的换挡品质。

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 numerical results of different magnetic permeability of the casing pipe show that in crosshole environments, non-magnetic or low-magnetic steel pipe is superior to magnetic iron pipe.

不同磁导率金属套管的电磁响应分析表明，电磁测井中，采用非磁性或弱磁性套管要优于一般的铁磁性套管。关键词金属套管井，有限尺寸线圈，电磁测井响应

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。