您要查找的是不是：
- black level signal 黑电平信号
- In total darkness it will reduce its lumen output and maximize black level . 在完全黑暗，将减少其流明输出，最大限度地提高黑色水平。
- This comparative black level effect will vary based on the calibrations chosen to "optimize" overall performance. 这个比较黑水平作用将变化根据定标被选择"优选" 整体表现。
- With VHS, Broadcast and the composite video output of your DVD player, the black level is elevated to 7.5% IRE. 用DVD播放机输出VHS，电视广播，复合视频时，黑电平提高到7.;5%25 IRE。
- Inthepaper, we introduce a basic method in setlling liguid level signal of oilwell by means of artificial neural net works and give the results obtained by this method. 本文介绍了利用神经网络处理油井液面信号的基本方法.;并给出利用此方法处理液面信号的结果
- As defined by the SMPTE 240 standard, the pulse will start at the zero volts (specified black level) and first transitions negative, to -300 mV (+/- 6 mV). 在SMPTE240标准中，脉冲以零伏电压（即黑电平）开始，然后负向跳变为-300mV(+/-6mV)。
- When the pest crawls through the electro-optical sensor, it will produce a high level signals and begins to count the pulse signal, the count to the pest's number can be realized. 当虫子通过光电传感器时，光电传感器输出高电平信号对脉冲信号进行计数，就实现了对虫子数量的统计。
- Black levels are noticeably improved, and the subtle softness that we found in the AE900 is entirely gone. 黑色水平明显提高，和一些微妙的柔软性，我们认为在AE900是完全消失了。
- LCD TVs are particularly prone to iffy black levels, although plasma sets are by no means immune. 液晶电视尤其容易遇到黑阶不行，不过等离子也没有完全摆脱这个情况。
- Also, their isolation is limited by the leakage currents of the semiconductor devices, and they have a high insertion loss for low level signals. 此外，其隔离受半导体器件漏流的限制，并且对低电平信号具有较高的插入损耗。
- Spurious microvolt level signals are often present in low resistance circuits, most often as a result of thermoelectric effects. 在低阻电路上往往会出现毫伏级的杂散信号，大多数是由于热电效应引起的。
- keyed black level clamping circuit 键控黑色电平箱位电路
- He was in black from crew to earing. 他全身上下都穿着黑衣服。
- He whipped up a pistol and shot at the black bear. 他急忙抓起手枪，向那头黑熊射击。
- The basic principles still apply: ground impedance must be as low as possible, high level and low level signals must be separated so that they do not interfere with each other, and capacitance and mutual inductance coupling must be avoided. 前文提到的原理仍然适用：地线阻抗要尽量小，大功率信号和微弱信号要分开布置以避免串扰，一定要避免电容性耦合和电场耦合。
- Many people were taken off by the Black Plague. 许多人被黑死病夺去了生命。
- The man is carrying a small black plastic handbag. 这个人提着一个黑色的小塑料提袋。
- The old trade in black ivory is on more. 昔日非洲黑奴的买卖已不复存。
- The black sedan suddenly drew out into the traffic. 黑色轿车突然开动，驶进了车流。
- I have a snag in my best black tights. 我最好的一条黑裤袜给划破了。
