典型双指数10/1000μs测试波形(10μs为波前时间(front time),1000μs为半峰值下降时间)与TVS PPP额定值通常是根据上世纪60年代末贝尔实验室规范规定的。
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(3)测试波形误差范围 8/20μs冲击电流波形参数误差: 峰值电流(peak value)Ip ±10% 波头时间(front time) T1 ±10% 波尾时间(time to half value)T2 ±10% 3.
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Virtual front time 视在波前时间
front time of impulse current 冲击电流波前时间
Wave front time 波前时间
long front time switching impulse 长波头操作冲击
time front 时锋
front edge time 前沿时间
in time in front of 在……前面
hourly time-front co 每时前进计算器
The absolute requirement for SOA success is to spend up-front time, gaining business support and discussing how SOA implementation will impact functioning of the business.
在项目前期投入时间对SOA成功是绝对必要的,包括获得业务支持并讨论SOA实现对业务功能的影响方式。
Children spend so much time in front of the television set.
孩子们在电视机前花的时间太多了。
He spends all his free time at home vegetating in front of the TV.
他把所有的空闲时间都用来窝在家里看电视。
A huge hole was torn in the front of it a long time ago.
VOA: special.2010.05.12
He was motionless, all but for one finger that moved up and down in front of his face as if he were marking time with it.
他一动也不动,除了一根手指在他的面前上下摆动,好像在用它标记时间。
Now, try putting that up in front of your desk: "You're a genius all the time."
你们可以试试把这句放在你们桌子前:,你一直是个天才“
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