高场强区
高场强区
虽然蜱虫不太可能出现在旷野之中,但是小孩在找球或者抄近路去学校时,有可能进入高危地区。
LDMOS is also widely used in the field of large area flat panel displays and automotive electronics as a high-voltage power amplifier devices.而作为高压功率放大器件,在各种大面积平板显示屏和汽车电子领域也得到广泛应用。
Novel catalytic performance and selectivity from nano-size zeolites with high exterior surface area and shorter pore pathway have aroused great interest in catalysis field.纳米分子筛因具有高的外表面积和短的孔道结构而显示了独特的催化活性和选择性,近年来已成为催化界的研究热点。