波形的

In addition, after comparing the time difference between the precursor and the main PKKPbc phase at different outer core conversion point positions, we find the seismic evidence for the tangent cylinder structure in the outer core.

4通过对PKKPbc波形及其前驱波的分析，得到了外核顶部轻元素组成的刚性薄层的地震学性质：我们还通过比较不同位置的前驱波到时的差异，提出了外核可能存在tangent cylinder结构的地震学证据。

By using this method,9 switching states were ensured during a sampling period of the matrix converter,and the duration of each switching st...

实验结果表明，采用提出的空间矢量脉宽调制优化调节策略，不仅消除了输出电压中的错误脉冲，而且降低了输出电压的总谐波畸变率，在输出频率为15Hz时，THD降低约15%，有效地提高了矩阵式变换器的输出波形质量，保证了系统的安全可靠运行。

The effect of CIT on sea state and target detection is analyzed and it is pointed out that with the existing system modern high-resolution spectral estimation methods must be used in place of the traditional periodogram.

分析了线性调频雷达的抗噪声及干扰能力，研究了距离域噪声的相关函数与其时域输入噪声的相关函数的关系，得出带宽越大相关距离越小的结论，并指出线性调频波形产生的系统处理增益为其时宽-带宽积。

The ignition of this electric current in the regulation when the dot is released with onefold weaveform, and the primary coil that electric current has shed ignition coil, tall voltage electricity produces in the secondary coil induction of ignition coil, its are to be in as a result intense scintilla bursts forth in sparkplug clearance.

此电流在规定的点火正时点以单一的波形被释放，而电流流过点火线圈的初级线圈，在点火线圈的次级线圈感应产生高电压电流，其结果是在火花塞间隙中迸发强烈的火花。

Because the formula of output voltage is the same as the one using other methods,the pulse width can be ascertained by choosing time constant based on the relation between voltage and current,and the proportional counter tube can be applied to different count ratio.

所得的输出电压的表达式与应用其他方法所得出的结果相同，因此可根据输出电压的波形与电路时间常数的关系，选择时间常数以确定输出脉冲宽度，使正比计数管适用于不同的计数率。

The combined application of seismic refraction and wide angle reflection methods,prospection of vertical seismic reflec...

地震折射波法和宽角反射波法的联合应用，近年来发展的垂直反射波法的探测，地震层析成像技术，地震面波的三维速度结构，物理模拟和数字模拟技术与波形反演、联合反演的应用，深化了对岩石层本体的认识。

The main mechanism of nitrogen in wetland systems is the action of microorganisms,while the removal efficiency will increase with the protraction of HRTin wetland,and also the action has a close relationship with the alternant changes of DO formed by the undee flowing.

湿地系统除氮的主要机制在于微生物的作用，随停留时间的延长湿地系统对氮的去除效率增加，且该作用与波形水流状态所形成的溶解氧交替变化有关。

In the situation of shock wave, the interaction caused by the situation of one shock wave catching up with another is qualitatively analyzed with the result of the wave form: reflection rarefaction and incidence shock wave.

对急流冲击波的情况，从定性的角度分析了一个冲击波追赶上另一个冲击波后的相互作用，得到可能产生的波形，即反射的稀疏波和入射的冲击波。

Thanks to this scheme, the phase, root-mean-square value, frequency, and waveform of the output sinewave voltage can be controlled precisely and the system has excellent steady-state performance, fast dynamic response performance, fast and reliable current cut-off protection function.

提出了一种新的适应"模块化"要求的高性能逆变电源控制方案，该方案是一种带有输出电压相位控制及负载电流前馈控制的多环反馈控制方案，能对输出正弦波电压的相位、有效值、频率、波形进行精确控制，使系统具有良好的稳态、动态特性以及快速可靠的截流保护功能。

Some hardwaretechnology such as GPS, Ethernet and embedded computer and somesoftware technology such as Object Oriented Programming are used in thesystem. The functions of sequence contfol, breaker"s trip and close at theprocess of protection simulating, evellt recorder and wave recorder withhigh resolation and algorithm validation are realized. The whole systemhas the character of reliability and simplicity."

该系统采用了全球定位系统、以太网络、数字信号处理器、嵌入式计算机等硬件技术以及面向对象编程的软件技术，可以实现模拟实验的序列控制、模拟保护的跳合闸控制、高分辨率的事件记录、波形记录及各种算法的实时仿真功能。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。