发射

Hence, the reasonable selection of the aperture is one of the important parameters for a high energy laser system.

因此，合理选择发射孔径是系统设计的重要因素。

Studied are the determining trace sulfur in iron, manganese ores and in cement by using spectroscopic method of inductancecoupling plasma emission, the selection of work conditions and the accuracy of results. As shown by tests, it is reliable to use aqua regia to resolve samples.

研究了利用电感耦合等离子体发射光谱法测定铁矿、锰矿、水泥等矿产品中微量硫的溶样方法、工作条件的选择和结果的准确性。

A compact arc light sensor has been developed based on the spectroscopic study on the plasma arc.

在等离子弧发射光谱分析的研究基础上，研制了轻便实用的弧光传感器，采用普通光电器件和滤光镜片替代赘重昂贵的光谱分析系统，可以捕捉到表征小孔特征状态的信

In this part, carrier interferometry technique is combined with MIMO-OFDM architechure, resulting in the so called MIMO-CI/OFDM system. It is shown that the novel system can achieve dramatic performance gains by taking advantage of large frequency diversity inherent in the CI/OFDM technique. Further more, the proposed MIMO-CI/OFDM system has a more stable envelope and, ultimately, an average PAPR far smaller than that of MIMO-OFDM.

将载波干涉技术与多天线OFDM技术相结合实现了一种MIMO-CI／OFDM结构，由于CI／OFDM具有大的频率分集作用，该结构因而获得显著的性能增益；而且由于采用CI技术使得发射信号的包络更加平稳，与原有的MIMO-OFDM系统相比具有较低的PAPR。

Transmitting and receiving impulse response of two-dimensional array are obtained by the summing impulse response of a single rectangular element with differentia delay time. The approximation arithmetic of array element impulse response is discussed.

讨论了单阵元声场脉冲响应函数的快速近似算法，通过对不同延时量的矩形单阵元声场脉冲响应函数进行叠加，得到了二维换能器阵列的发射和接收脉冲响应函数，再施加以宽带脉冲激励函数，从而得到二维换能器阵列的声场分布。

Since the transmitted data from each antenna is first pre-processed and then arithmetically added onto the training sequences, thus the influence of the unknown data to the channel estimation existed in normal implicit method can be cancelled.

由于每根天线的发射数据经过预处理后再算术叠加到训练序列上，从而消除了传统隐含估计方法中未知数据对信道估计性能的影响。

Characteristics and causes of formation of adiabatic shear bands in 30CrMnMo armor steel plate are analyzed.

发射小口径脱壳穿甲弹，对 30CrMnMo钢装甲靶板产生的绝热剪切带特性及形成原因进行了分析。

Armed with an arquebus, this forerunner of the musket is capable of firing deadly armour piercing shots. This noisy, smokey and lethal weapon is so intimidating it causes morale damage as well as physical hurt.

他们使用的火绳枪是滑膛枪的前身，其子弹可穿透盔甲，发射时伴随弥漫硝烟和恐怖巨响，对敌军无论精神还是肉体都造成巨大伤害。

Like the arquebus, it fires using a matchlock mechanism, a smouldering length of rope as a fuse that ignites the gunpowder in the pan.

与火绳枪类似，滑膛枪亦采用缓燃枪机构造，以缓慢燃烧的火绳点燃引药盒中火药进行发射。

Based on the repetitive characteristic of the transmitted signal, a frequency domain signal model is developed. Its similarity to DOA estimation using an array and its ambiguity in parameter estimation are analyzed.

基于发射信号的周期重复性，建立了接收信号的频域模型，分析了该模型与利用阵列进行来波方向估计模型的相似性，以及该模型在参数估值时的模糊性。

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％。