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The calculation shows that the transition amplitudes display some damped oscillation with a period inversely proportional to the energy gap between the initial and final states and a damping time determined by the inter-molecular potential of the collision system.

对b与v对θ_的影响的分析表明,在物理上有意义的b和v的范围内,CO-He体系的θ_分布在30°~70°范围内,CO-HCl体系的θ_分布在93°~116°范围内,故不存在正负干涉抵消的问题,"平均效应"不严重。

The first rank derivative is a reflection of curve change and its rate, at certain range, if the sign of the first rank derivative has changed, the logging value of the correspondence depth point means maximum in this range; the second rank derivative is the knaggy property reflection of curve, at certain range, if the sign of the second rank derivative has changed, the correspondence depth point represent the inflexion of geophysical logging curve, it's also a turning point of the reflection of knaggy change property of the curve, it is the interface of stratum.

测井曲线的值是深度的函数,测井曲线的一阶导数表示了曲线变化的趋势和变化的快慢,在某一范围内,当一阶导数呈现符号转换时,相对应的深度点的测井值即为该范围内极大值;测井曲线的二阶导数则表示曲线的凹凸性,在某一范围内,当二阶导数呈现符号转换时,相对应的深度点代表了测井曲线的拐点,即反映曲线凹凸性变化的转折点,亦即地层的分界面。

The mathematical model and optimized result indicate that the magnetic field in the inner wall of the detecting coils is of non homogeneity. At a ratio R/L .2, the magnetic field along the axial length and within the range of 90% radial direction is nearly homogeneous.

数学模型和优化结果表明:在检测传感器线圈中部范围内为非匀强磁场,且呈非线性变化,细长管磁场相对均匀;当选取 R/ L 。2 ,磁场在线圈轴向长度范围内,径向在90 %范围内可近似看作均匀磁场。

Heat flows derived from garnet, chromite/chromium-spinel and pyroxene of xenoliths, xenocrysts in Mengyin and Fuxian kimberlites are higher than 40mW/m〓 calculated from the pyroxene inclusions in diamonds, and the range of pressure is 20~40kb (equivalent to 65~130km). Metasomatism (as indicated by yimengite and lindsleyite in Mengyin) is very strong in this depth range. Lherzolite, wehrlite, and diamond-free high-Ca harzburigite around the world are derived from this depth also. The observation suggests that the low-Ca harzburigitic environment for diamond stability had been changed significantly when the kimberlitic magmas erupted. This resulted from fluid interaction with harzburigite. The geotherm of the Cenozoic lithospheric mantle beneath Eastern-North China platform is higher than oceanic one. The temperature from the interior of the Tan-Lu faults is higher than that from apart off the fault.

除金刚石中的辉石温压投点落于40m W/m〓占地温线上外,捕虏体及捕虏晶中石榴石,铬尖晶石及单斜辉石的投点均偏离该地温线,显示较高的地温特点,而且捕虏体及捕虏晶的压力范围多在20-40kb(相当于65-130km)间,该深度范围内地幔的交代作用特别发育,如蒙阴大量发育的沂蒙矿、钛钾铬石等就发育于该深度范围,世界范围内不含金刚石的高钙方辉橄榄岩、二辉橄榄岩、异剥橄榄岩也分布于该区中,一方面表明捕虏体的主要取样位置已不在金刚石稳定区中,另一方面也表明金刚石稳定的橄榄岩环境,在金伯利岩侵位并捕虏他们时已发现了明显的改造,这种改造作用主要是通过长期的熔流体与先存的橄榄岩相互作用的结果。

In order to know irradiant dynamic process we must have excitation crosssection of electron collision with molecule. Incident electron energy is inintermediate range. At low energy, there are several good methods thatcalculate electron collision with molecule for example Variation, R-matrix.

此时入射电子的能量已经达到中能,在低能范围内的电子与分子散射有许多好的方法如变分法、R-矩阵方法,在高能范围内利用Born近似等方法也能得到满意的结果,在中等能量范围的电子与分子碰撞则没有相应的成熟的方法,使用比较多的是密耦(Closing-Couple)方法,这种方法将相互作用势分为静态势、交换势、极化势,在耦合态的选取上比较自由,可以根据实际的问题及分子的特性选取耦合作用比较强的通道,这样既能保证精度又能减少计算量。

The water content of external layer of root xylem of Kalidium foliatum is highest. In the range of root diameter from 0.3cm to 0.5cm,the most roots diameter are between 0.3cm and 0.5cm.

盐爪爪根的皮层含水量在径级为0.3-0.5cm范围内最高,大于0.5cm含水量反呈下降,而盐节木根径级在0.5-0.6cm范围内皮层和木质部含水量均最高,这可能是盐爪爪和盐节木根系径级分别多集中在0.3-0.5cm和0.5-0.6范围内的原因之一。

Evolution pattern of solidification microstructure in the monophase Cu Ni alloy in the range of thermo dynamically supercooling of 63~292 K is investigated, and both the condition of supercooling degree and orientation mechanism and control method of directional crystalline growth in the melt under negative temperature gradient are analyzed.

研究了 6 3~ 2 92K热力学过冷度范围内,Cu Ni单相合金的凝固组织演化规律,分析了负温度梯度熔体中晶体定向生长的过冷度条件以及晶体生长取向机制与控制方法。结果表明:(1)在临界过冷度ΔT (≈ 10 6K)附近,晶粒细化过程受溶质扩散控制,在临界过冷度ΔT (≈ 2 0 0K)附近,晶粒细化过程受热扩散控制;(2 )在 6 3~ΔT K范围内,晶体的生长方向是 [10 0 ],在 12 7~ΔT K范围内,晶体的生长方向可以是 [10 0 ],也可以是

The two-photon absorption cross-sections of these styryl derivatives were determined by Z-scan technique, and the benzothiazolium derivatives exhibited the largest TPA cross-sections (10〓s·cm〓/photon) and the best power limiting ability at high operable incident intensity. The results show that the benzothiazolium derivatives are promising organic compounds as two-photon absorption optical limiting materials. 2. Several organic dyes active to 800nm femtosecond laser with D-π-A structure were designed and synthesized.

研究了它们的上转换荧光、上转换激射和光限幅行为,通过改变染料分子共轭体系的大小,首次实现了在576nm-635nm范围内的双光子上转换激光波长的调节,其中噻唑啉碘盐类二苯乙烯化合物的双光子上转换激射峰(576nm)是迄今在1064nm皮秒激光作用下能够得到的最短波长的激光;阴离子显著改变上转换激射效率,但对上转换荧光峰和激射峰的位置影响很小;增加溶液的浓度,上转换荧光光谱和激射光谱红移,并在一定的浓度范围内,能够有效的提高上转换激射效率;利用Z-扫描技术测定了染料分子的双光子吸收截面,发现苯并噻唑类染料分子的双光子吸收截面高达10〓s·cm〓/photon,而且在较大的入射光强范围内,这类染料分子具有较大的光限幅能力,是一类作为双光子吸收光限幅材料很有潜力的染料分子。

Nevertheless, the pollution extents of these two dements are rather apparent at a distance beyond 500 m from the roadbed.

在距路基10m范围内为土壤重金属重度污染带,10~100m范围内为中度污染带,100~500m范围内为轻度污染带。

In this phase transformation range and under its elastic limit of shape memory effect range , the relationship of elastic modulus of SMA with temperature is nonlinear.

实验结果显示,SMA在100%沃斯田体与100%麻田散体相变化范围内,其弹性系会受到自身温的影响,在这个相变化范围内,SMA於形状记忆效应范围内,在其弹性限以下,其弹性系数与温度呈非线性关系,本研究藉由实验数据,建了弹性系与温的关系式。

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Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克,果实色泽鲜艳,汁多味浓,甜酸适口,离核仁甜,清末时就驰名陕、甘两省,清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异:红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感,ED90值分别为47.65、71.67和29.17g/hm2;春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感,ED90值分别为96.91、114.20g/hm2;而番茄不敏感。

However, I have an idea.

不过,我有个主意。