| 1. | Significant wave period
有效波周期 |
| 2. | Significant wave height
有效波高 |
| 3. | The snapshots of the theoretical and salt model show that they reduce artificial reflections to a great extent and absorb energy over a wide range of incident angles
理论模型及三维盐丘地质模型波场切片快照试算结果表明，该吸收边界条件可以有效地吸收人为边界反射，适用于较大入射角情况，从而消除了边界有效波信息的干扰。 |
| 4. | Based on data collected from east china sea , the waves are calculated and analysed statistically , therefore as obtained the relation between wave height and significant period as well as average period
摘要根据实测数据对我国主要渔区（东、黄海）的波浪进行了统计分析，得出适用于该海区的有效波高与有效周期及有效波高与平均周期的统计关系式。 |
| 5. | The precondition for processing cross - well seismic data is that to perform the original data analysis thoroughly and determine the various waveforms and wave field as well as using the effective way to boost the direct arrival and reflection and suppress the disturbances and other noises
处理井间地震资料的前提是全面详尽地分析原始资料，判别确认记录上的各种波型与波场，采取有效手段突出直达波和反射波等有效波，压制干扰波和噪音。 |
| 6. | Observed tidal harmonic constants in many stations are used to verify the astronomical tides in the compound fluid model . the wave model is tested by a set of wave flume data at first . then the results are compared by the actual processes of significant wave height in gauging stations
其中复合流场模型中的天文潮利用众多测站的实测调和常数进行验证；波浪模型首先进行了水槽实验的检验，然后在台风过程中，进行了测站有效波高过程线的比较。 |
| 7. | By the simulation results , it is verified to have excellent performance . a class of uncertain nonlinear systems which can be transformed into strict feedback nonlinear systems is investigated based on feedback linearization approach of differential geometry . an adaptive robust controller with l2 - gain is proposed by using backstepping technique . the numerical method is given and it is proved to be practical by simulation results . lt is a more practical method to solve hji for a special nonlinear system because the problem to solve hji is very difficult in general case , and only get the approximate solution when it can be solved . an effective method to solve hji is presented for a class of nonlinear system which is ordinary
考虑到一般情况下，求解hji是非常困难的，并且也只能得到近似解，因此，在系统设计时，针对具体非线性系统的特殊结构以求解hfl是系统设计的一种行之有效的方法，基于以上考虑，对一类具有广泛工程背景的非线性系统，提出了一种求解hfl的有效方法，便于实际应用。最后，从波能谱的角度，研究随机海浪的仿真问题，给出了船舶横摇仿真中需要的随机海浪有效波倾角的仿真方法。 |
| 8. | Based on the technical difficulties in data acquisition , processing and interpretation , especially the difficulties in acquisition stage , combined with the feasibility and present situation in acquisition technology research , started from wave propagation theory , this article studies the absorption and attenuation of the effective wave and gets three basic recognitions
本文较全面分析了深层地震勘探枝术从资料采集、数据处理、资料解释中存在的技术难点，突出了原始资料采集中的困难，结合开展深层地震勘探技术研究的可行性和发展现状，从波的传播规律入手，通过理论模型计算，研究了有效波传播的吸收与衰减问题，取得了三点基本认识。 |
| 9. | The application of multi - level delay charging method has change the conventional charging method and increase the effective energy in downgoing elastic wave , which has unique effect in increasing the bandwidth of effective wave , resolution , s / n ration and interference attenuation and is worth to propagate
多级延迟爆炸技术的应用，改变了传统的激发方式，提高了弹性波下传的有效能量，对提高有效波频带宽度、在提高分辨率、信噪比、压制干扰各方面，都具有独特的作用，具有很好的推广价值。 |
