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The predictions are identical with that of foreign underwater acousticexperiments.The third,the scattering theory are applied in prediction of seareverberation and inversion of sea bottom parameter.Shallow-sea monstaticreverberation is predicted by combining shallow-sea normal mode theory withscattering theory.Then with simulated annealing of neural network and scatteringtheory accurate inversion of sea-bottom parameter and surface roughness are given.

第三,把散射理论应用于海洋混响的预报和海底介质参数的反演,首先通过浅海简正波理论和散射理论相结合,对浅海单程混响进行了预报;然后利用神经网络理论中的模拟退火法和散射场理论相结合,准确地反演了海底介质参数和表面粗糙度。

At one time chagrin was thought to be the same word as shagreen,"a leather or skin with a rough surface," derived from French chagrin.

Charin 曾经被认为和由法语词 chagrin 派生出来的 shagreen "有粗糙表面的皮革或皮肤"是同一个词。

Meanwhile single factor test and variance analysis method were adopted to analyze the Ra data,and then the grinding surface topography was analyzed.

采用单因素法设计试验方案对铁氧体进行磨削,测量表面粗糙度数据并对其进行方差分析,对铁氧体磨削表面形貌进行观察。

The effects of phase offset deviation and intensity deviation on measurement, and the cut-off error of sinusoidal phase modulating function in phase shift interferometry are discussed and analysed.

本文将连续相移干涉技术、外同步控制技术和锯齿波相位调制技术,用于改造传统的光波干涉量法,实现了表面轮廓测量,成为一种有效的表面粗糙度评定和分析手段。

This dissertation proposes group reasoning and group AHP-based GDSS structure and its decision steps to solve the problems existing in research of theory and application of GDSS. Besides, the dissertation also studies the method of group reasoning on rough-set and qualitative reasoning method basis in GDSS. It also studies on constructing method of hierarchy structure of group AHP in GDSS and combinative method of judgment matrixes. Moreover, it studies on method regarding construction of judgment matrixes on rough set based and optimization theory of convex combination parameters of judgment matrixes as well. Finally, it develops an AHP based GDSS to demonstrate the efficiency of these methods.(1) This dissertation also summarizes the developing trend of GDSS and analyses problems as regards the research of GDSS.

本论文针对GDSS理论研究及应用中存在的若干问题,提出了基于群体推理及群体层次分析法的GDSS结构,并给出了基于该结构的GDSS的决策程序;研究了GDSS环境下的基于粗糙集理论及定性推理技术的群体推理方法,并举例说明了方法的有效性;研究了GDSS环境下群体AHP层次结构的建立、判断矩阵集结的理论与方法;研究了判断矩阵凸组合系数的优化原理;探讨了基于Rough Set的判断矩阵构造方法;开发了一个基于AHP的GDSS原型系统,旨在验证本文关于GDSS环境下群体AHP有关方法的有效性。

The crosslinked PEG-20M glass capillary column was prepared by dynamic coating method with boron trifluoride as catalyst,3-glvcidyl-oxypropyl-trimethoxysilane as crosslinking agent.

以PEG-20M为固定相,三氟化硼为催化剂,3-缩甘油氧丙基三甲氧基硅烷(简称KH-560)为交联剂,二氯甲烷为溶剂,对预先用氯化钠沉积法粗糙化的玻璃毛细管柱进行动态涂渍。

The largest amplificatory wavelength in this experimental situation,found through analysis and numerical calculation,is 4.0 mm,which is validated by Naphthalene visualization.

通过升华法试验验证了理论分析与数值计算结果。在试验中使用丝网印刷技术在后掠机翼前缘添加粗糙带,成功地引入了理论计算的最大放大率波长。

In this paper, an efficient and easy biological screening method based on the sensitivity to lovastatin of Neurospora crassa was built to deal with the mutant strain rudely by UV mutation. A high-level strain was screened in the shaking flask culture incorporating with TLC and HPLC. A comparison between this two methods also was originally discussed while identifying dyeing using bromophenol blue as the better treatment of TLC, and offering a kind of simple, practical, fast and economical determination qualitatively and quantitatively.

本文有鉴于此,通过紫外诱变处理,并基于粗糙脉孢酶对洛伐他汀的生物敏感性,对诱变菌株进行了初筛;同时,采用摇瓶培养,结合TLC和HPLC的分析方法,复筛出一株高产菌株;对复筛过程两种分析方法分别进行了初步探讨,比较其优劣,确定TLC法经溴酚兰显色剂显色处理为较佳方式;从而,建立了一套简单、实用、快速、经济且有效的洛伐他汀生产菌诱变筛选方法。

Artery left circumflex were isolated by operation,and artery LCX thrombosis was formed using endangium rough combined with electrostimulator.

手术分离冠状动脉左旋支,以血管内膜粗糙+电刺激法形成冠状动脉左旋支血栓,检测静脉注射不同剂量reteplase后对冠状动脉左旋支血流量、栓塞再通率、心肌梗死范围、伤口失血量和末梢出血时间的影响。

If using humidly hardener, the surface can be humid, but there should not be any panice. b the surface should be fastness, compact and smooth, without any sand streak, floppy shell, crack, comb,bug holes. Using light blasting spray to clean the unevenness and incompact raffle, and getting the appropriate roughness, filling the crack with HF61-30 mixed with fine sand. C the surface must be clean, and have no oil stain.

如采用湿固化涂装,则表面可潮湿但不能有浮水。b水泥表面应坚固、密实、平整,不能有起砂、起壳、裂缝和蜂窝麻面等现象,可采用轻喷砂法除去水泥面上的不平整和不结实的杂物,并使其具有一定的粗糙度,对裂缝可使用HF61-30添加适量细砂填补。c表面必须清洁,须除去表面油污。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。