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The double～probe pulse echo method, combining the advantages of transmission technique and pulse reflection method, is used to optimize the ultrasonic echo signal amplitude in case of strong attenuation of energy when ultrasonic signal transmitting in solid rocket motor grain.

采用双探头脉冲反射法，综合了穿透法和脉冲反射法的优点，实现了超声信号在固体火箭发动机药柱中传播时能量强衰减的情况下超声回波信号幅值的最优化。

We do not know the exact details, but in his poems Solon boasts of having removed the mortgage columns from the fields and brought back all the people who had fled or been sold abroad on account of debt.

详情我们虽然不太清楚，但是梭伦在他的诗中自夸说，他清除了负债土地上的抵押柱，使那些因债务而被出卖和逃亡到海外的人都重返家园。

There will be many astigmatism veins in the process of expiating new motor lamps using Reverse Engineering such as side astigmatism veins pole astigmatism veins triangle astigmatism veins, yuyan astigmatism veins pyramid astigmatism veins four-corner astigmatism veins six-corner fake astigmatism veins six-corner changed stigmatism veins and etc.

利用逆向工程技术进行汽车车灯新产品的开发过程中经常遇到各种各样的配光纹，常见的有侧配光纹、柱状配光纹、三角形配光纹、鱼眼配光纹、金字塔配光纹、四角电铸纹、六角伪电铸纹和六角变形电铸纹等。

Under the precondition of ensuring resist-shear and ductility of reinforced concrete structure, it is easy for allocating steel bars and convenient for construction to use the new type of steel bars substitute the middle tie steel bar or the staggered hoop reinforcement.

本文研究了一种新的约束配筋形式，在保证钢筋混凝土结构抗剪性能与延性的前提下，替代柱中的中间拉筋或交错箍筋，配筋简单，施工方便。

On the basis of the method of separating variables of sucker rod wave equation,in combination the matrix recursion technology with trigonometric series recursion technology,a kind of quick arithmetic of pump dynamograph in failure diagnosis technology of sucker rod pumping system is proposed.

在抽油杆柱波动方程分离变量法的基础上，将矩阵递推技术与三角级数递推技术相结合，提出了有杆抽油系统故障诊断技术中计算泵功图的一种快速算法，这种方法不仅适用于单级抽油杆采油系统，同时也适用于不同材质、不同杆径抽油杆组成的抽油系统。

On the side,many atypical virus particles such as truncated,cone,pillar particles,and the cytoplasmic inclusion bodies were examined in the brain tissue and culture cells,which inoculated different strain.

另外，在不同毒株的脑组织和细胞培养物中还发现了大量的非典型粒子，诸如截断的粒子及锥形、柱形等形态，同时还发现了胞浆包涵体。

The observation of SEM, EDAX and IR analysis showed that the conformation of MPPE was changed, the surface and section of MPPE were rough and accidented, the specific surface area of MPPE was increased, and magnetic powders, HAP and other additives were separated in polyethylene polymer. The removal rates of Phenol by using PPE and MPPE were 82％, 93％, the removal rates of TOC could reach 78％, 89％ respectively, when the phenol wastewater at 120mg/L concentration was treated with aerated process for 14 hours. The removal rates of Phenol were 85％, 90％, the removal rates of TOC reached 80％, 86％ respectively when the phenol wastewater at 350mg/L was treated for 35 hours. The weight of biofilm formation on MPPE was 64％ and 34％ higher than that on PPE at this two wastewaters.

质量浓度为120mg/L的含苯酚废水在好氧生物填料柱中处理14 h后，PPE和MPPE对苯酚去除率分别为82％和93％，TOC去除率分别为78％和89％；质量浓度为350mg/L的含苯酚废水处理35h后苯酚去除率分别为85％和90％，TOC去除率分别为80％和86％；两种不同质量浓度的含苯酚废水降解后MPPE上微生物挂膜量分别比PPE提高约64％和34％。

Fruit dehiscent siliques or silicles, linear, oblong, ovoid, obovoid, ellipsoid, or lanceolate, terete or slightly 4-angled, sometimes angustiseptate; valves with a prominent midvein, smooth; replum rounded; septum complete or perforated; style absent or short and to 1.5 mm; stigma capitate, entire.

果开裂长角果或短角果，线形，长圆形，卵球形，，椭圆形，或披针形，四棱形，有时果实狭隔的圆柱状或稍；裂爿具突出中脉，滤波；假隔膜绕行；隔膜完全的或具孔；花柱无的或短和对1.5毫米；柱头头状，全缘。

Baseline separation of eight kinds of LCFAs (dodecanoic acid, tetradecanoic acid, palmitic acid, oleic acid, stearic acid, eicosanic acid, erudcic acid, behenic acid) was achieved within 2 min with high resolution performance.

建立了利用短的微径色谱柱直接测定食用油中未衍生化长链脂肪酸的快速气相色谱方法。C12~C22脂肪酸在2 min之内实现基线分离，定量标准曲线的相关系数大于0.988，最低检测限（S/N=3）为2.80~9.60 mg/L，回收率为

Methods Five different ultraviolet absorption components were isolated from the filtrate of Botrytis cinerea isolate 7–3 culture. Of the five components, one showed strong inhibitory to Digitaria sanguinalis.

在前期薄层层析法、柱层析法和高效液相色谱法分析的基础上对灰葡萄孢诱变菌株BC7–3的代谢产物中具有除草活性的5个不同组分分别进行了液相色谱制备。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐