1) medium-frequency electromagnetic field
中频电磁场
1.
Using finite element method,the effect of medium-frequency electromagnetic field on molten flow pattern in electromagnetic soft-contact mold was simulated.
采用有限元方法模拟了中频电磁场对软接触结晶器内钢液流动的影响规律,讨论感应线圈电流强度和电源频率等因素对结晶器内钢液流动的影响。
2) elect magnetic field
电磁场中
1.
This paper analyzes the relativistic motion for a charged particle in electric field,magnetic field and elect magnetic field.
该文对带电子在电场、磁场以及电磁场中的运动进行分析并在四维闵可夫斯基空间 ,对带电粒子在电磁场中的相对论运动进行求解 。
3) low-frequency electromagnetic field
低频电磁场
1.
Investigates experimentally and comparatively the as-cast microstructure and Cu macrosegregation of 2024 Al alloy ingots by HDC(horizontal direct chill) continuous casting process in low-frequency electromagnetic field and those by conventional horizontal continuous casting process,where the cross-sectional area of specimens is 40 mm×200 mm.
实验结果表明,低频电磁场可以显著地改善铸锭的微观组织,使铸锭的微观组织得到明显细化;低频电磁场还可以减少Cu元素在横截面上的宏观偏析,使Cu元素在横截面上的分布更加均匀。
2.
This paper provides a convergence analysis of finite element methods for the low-frequency electromagnetic fields in multi-media based on an A-φ scheme.
文中提出了求解多媒质中低频电磁场的一个全离散耦合A-φ方法。
3.
The results show that the low-frequency electromagnetic field effects on the formation of the CaCO3 grain by accelerating nucleation and suppressing crystal growth for scale inhibition.
文章利用电导率和钙离子浓度的变化研究了低频电磁场对碳酸钙结晶的影响,并分析了碳酸钙结晶体的微观结构。
4) power frequency electromagnetic field
工频电磁场
1.
Study on the power frequency electromagnetic field under UHV transmission lines;
特高压输电线路下方工频电磁场的研究
2.
Based on the measured results of electromagnetic field of the transformer substations above 110kV level in Fujian and Zhejiang provinces,the space distribution rule of power frequency electromagnetic fields on and out of the boundary of various voltage level transformer substations are researched.
以闽、浙两省110 kV以上等级变电所的电磁场监测结果为基础,着重研究了各电压等级变电所边界处及边界外的空间工频电磁场场强分布规律,分析和探讨了变电所外空间电磁污染的现状,为进一步开展变电所的电磁环境影响研究提出了建设性意见。
3.
Theoretical analysis is conducted for the power frequency electromagnetic field and radio interference in power transmission & distribution project.
对输变电工程工频电磁场、无线电干扰进行了理论分析,指出输变电工程工频电磁场是感应场,而非辐射场。
5) high frequency electromagnetic field
高频电磁场
1.
The effect of high frequency electromagnetic field imposed on outside of a cold crucible mold on the quality of cast metal in hot experiment was studied.
考察了冷坩埚式结晶器外施加高频电磁场对连铸坯表面质量的影响。
2.
For this reason, the antiscaling technology using high frequency electromagnetic field is introduced.
为此，介绍一种利用高频电磁场防垢技术，经在佳木斯策二火电厂等电厂的应用取得良好效果。
6) low frequency electromagnetic field
低频电磁场
1.
The influence of low frequency electromagnetic field on ingot surface quality and as-cast microstructure in horizontal direct chill (HDC) casting process were investigated experimentally.
采用实验的方法研究了低频电磁场对水平半连续铸造铝合金的表面质量及铸态组织的影响·将使用传统水平半连续铸造生产出的铸锭与低频电磁水平半连续铸造生产的铸锭进行了比较·研究结果表明,低频电磁场可有效地减少铸锭的表面缺陷并显著改善铸锭的微观组织·此外,提高磁场的强度或适当降低磁场的频率均有利于对铸锭质量的改善·实验所采用的安匝数及频率范围中,最优的条件分别为10000,30Hz
2.
The distributions of electromagnetic fields with different intensities and frequencies in melt in electromagnetic HDC casting process were examined by numerical prediction, and the influences of low frequency electromagnetic field with different conditions on macrosegregation in HDC casting process were investigated experimentally.
研究结果表明:在传统水平半连续铸造工艺条件下,铸锭中易出现较严重的负偏析及重力偏析;然而,在低频电磁水平半连续铸造过程中,低频电磁场的存在明显削弱了铸锭中的宏观偏析。
补充资料：中频
1.高于低频﹑低于高频的电磁振荡，其范围一般是10－550千周。在超外差式收音机中，由收音机本身产生的振荡和接收到的高频混合而取得中频。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条