查询词典 noise-power-ratio

This paper uses microcontroller AT89C51 as the control core,and designs a practical noise annunciator.

利用 AT89C51单片机为控制核心，设计一种实用的噪声报警装置。

See from the rate of resorting dust, different green ground type have the obvious difference in resorting dust effect, anomy them, the effect value of life area sparse woods lawn is biggest, the next is the woods of defending dirty, reducing noise and producing district sparse lawn.

从滞尘率来看，达电不同绿地类型之间滞尘效应差异明显，其中生活区疏林草地的效应值最大，其次为防污减噪林、生产区稀疏草地。

Unless the sources of the noise and the antinoise coincide, the wave patterns will not overlap properly and the effect will be lost.

如果噪声和反噪声不同步，它们的波形将无法准确地叠加，从而失去抑制效应。

Appropriate aggregate-exposed cement concrete pavement has the characters of antiskid ,wear resistance and low noise.

合适的露石水泥混凝土路面具有抗滑性高、耐磨性高、路面噪音低等特点，可使隧道水泥混凝土路面性能在多方面得到改善与提高。

Amid the glare and noise of battle our Anzac Fathers added Compassion and Human Tenderness to the noble list of Australian Values.

在炮声轰隆、火光冲天的战场上，我们澳新军团的父辈们为澳大利亚高尚的价值观，重重地填写了一笔同情心和人性

Robust aposteriori L〓 filtering to noise inputting matrix uncertainty system can be reduced to the solution of a linear matrix inequality too.

对噪声输入矩阵不确定性情况下的鲁棒L〓验后滤波，本文的解法也归结为一凸优化问题，可有效的求解。

In discrete-time linear system, apriori H〓 filtering, aposteriori H〓 filtering, L〓 apriori filtering with an H〓 error bound, L〓 aposteriori filtering with an H〓 error bound, robust H〓 apriori filtering, robust apriori L〓 filtering, and robust aposteriori L〓 filtering to noise inputting matrix uncertainty system are considered.

对离散线性系统，研究了确定性系统的H〓验前滤波和验后滤波、H〓约束下的L〓验前滤波及验后滤波、不确定性系统的H〓验前滤波、鲁棒L〓验前滤波及噪声输入矩阵不确定性情况下的鲁棒L〓验后滤波。

Point out the electromagnetism signal produced by human campaign not be noise completely, in which, part has formed useful signal. Analyse through error theory, have gotten the mathematics relation of phase error and apparent resistivity error.

引入CSAMT的理论，对MT勘探中电干扰和磁干扰进行了研究，从理论上证实了磁场的信噪比要优于电场的，指出人类活动所产生的电磁信号并不全部是干扰，其中一部分构成了有用信号。

As referred to the 8th, March Scene, sounds have the aesthetic joyfulness. Although what appear on the scene is still impromptu, it differs greatly to the noise which refuses aesthetics.

就3.8的现场说来，声音是存在审美的愉悦感的，虽然现场出现的还是属于即兴声音的范畴，但是它和拒绝审美的噪音还是存在很大差别。

Firstly, the phase noise of microwave frequency source is obtained by using linear approximation method.

第三章主要是对拉曼激光的相位噪声的来源进行分析，具体计算拉曼激光的噪声。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。