自屏蔽

And the traditional passive filter's function is also limited for avoiding the resonance and harmonic enlarging. The auto-compensator and harmonics shielding converter transformer can be used to solve these problems, which is based on the principle of the winding ampere and turn's balance. This paper elaborates this kind of transformer filter mechanism. In the view of the HVDC system, a new winding connection plan is proposed, and the filter optimization model is created.

作者基于自耦补偿与谐波屏蔽的换流变压器，针对某实际的HVDC模拟系统，提出了与该变压器配套的滤波装置的接线方案，并将外罚函数法和遗传算法相结合，对上述滤波装置进行优化设计，建立了以初期投资最小为优化目标、满足系统无功需求的滤波器优化配置的数学模型。

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。

A lower prepulse high power density water dielectric self-breaking switch was investigated on Flash Ⅱ generator.

在西北核技术研究所的&闪光－Ⅱ&装置上进行了水介质多针自击穿开关实验研究，该开关由2个或4个开关间隙、1个预脉冲屏蔽板及其支撑结构组成。

This connector is an efficient shielding, quickly plug and draw self-locking, the surface plated pearl chromium, nickel , gold-plated in pin. Design is refinement and convenient operate what is a high-precision circular connectors, it widely used in medical equipment, test systems, instrumentation, endoscope, computer systems, remote video systems, a single coaxial or multi-coaxial, as well as electron /mixed coaxial unlimited equipment and so on. The accessories are plug cap, sheath

此连接器具有高效屏蔽性能，快速插拔自锁，表面镀珍珠鉻，镀镍，针孔镀真金，设计精巧，操作方便，是一款高精密圆形连接器，广泛应用于医疗器械设备，检测系统，仪器仪表，内窥镜，电子计算机系统，远程摄录系统，单同轴或者多同轴，还有电子/同轴混装输入无限设备等，附件：插头帽，护套

Corett pump is a stock enterprise .The main produet is magneticpump,water pump,self suction pump,shielding pump and metering pump.

高瑞特泵业是专业从事磁力驱动循环泵、全自动家用增压泵、全自动自吸供水泵、屏蔽管道泵、计量解液泵等特种泵类产品的开发、生产、销售、服务为一体的企业。

The shielded rectangular cross section slab line with cylindrical inner conductors is of great importance to microwave engineering and design.

在具有圆柱内导体的叉指滤波器和梳状滤波器工程设计中，对屏蔽矩形板线特性阻抗的计算至关重要，只有通过计算，才能确定滤波器中各导体的自电容和耦合电容值。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。