And for analog applications by adding a normally - on nmosfet in series with the n - mosfet in an analog circuit respectively . according to spice3f5 and bert2 . 0 simulation results , the substrate current of new structure cmos inverter is suppressed to about 50 % of its original value and good hot - carriers resistant behaviors are obtained without adding any extra delay 0对倒相器的模拟结果表明：新型cmos数字电路结构结构使衬底电流降低约50 ，器件的热载流子退化效应明显改善而不会增加电路延迟；巳该电路结构中肖特丛一级管可在nmosfet漏极亘接制作肖特基金半接触来方便地实现，工艺简单又无须增加芯片而积。
Type of national television system committee system . national television systems committee the association s a committee of electronics industry , for the united states , canada , japan and central america with the business television broadcast of part of regions in south america establishment standard . ntsc format 3 10 per second 30 hz , distinguish the rate to 525 to scan the line . palthe line pour the system the type : phase alteration line this standard used fors majority europe the nation , australia , central america with the business broadcast of part of regions in south america . when the pal format show , 25 per second 25 hz , distinguish the rate to 625 to scan the line . line 电子工业协会的一个委员会，为美国加拿大日本以及中美和南美部分地区的商业电视广播制定标准。 ntsc格式每秒三十帧30hz分辨率为525扫描线行。 pal逐行倒相制式phase alteration line ：此标准用于大多数欧洲国家澳大利亚中美和南美部分地区的商业广播。
Also call to pour the type to open the bore box a box for , department on the box the front - panel openning having pouring the bore . because of openning to there is bore , voice in the box to can then radiate the outside . pour the type the box the low frequency extension for ratio closeness type box to be good friends with the amount , but the bass usually and not and so fructify the tightly packed . comparison " infinite baffle " infinite baffle 也称倒相式开孔箱，系在音箱面板上开有倒相孔槽的一类音箱。由于开有孔，箱内的声音便可以辐射到外面来。倒相式音箱比密闭式音箱的低频延伸要好些，但低音往往不那么结实紧凑。
Recurring to rnathematic figure and examples and aiming at such questions as unbalanced current and induced voltage and high frequency interference , this paper has not only researched anti - jamming ability and measuring process of both three - electrode method and four - electrode method which are combined with reverse phase method , but also summarized actual measuring experiences 通过数学推导和实例，围绕消除地网不平衡电流、电压极电流极引线问互感电压、高频干扰等问题，分析了三极法、四极法结合倒相法测量接地电阻的抗干扰能力和测量过程，并总结了实际测试经验。
