查询词典 threshold intensity

Based on the interference theory of light wave and Mie′s scattering, atheory of the quasi-waveguide has been developed for the first time,which,in two aspects,represents the property of the mode spectrum in aquasi-waveguide e.g.the analytic expression of the reflection intensity asa function of the incident angle,and that of the scattered intensity as afunction of the output angle.

基于平面波的光波簇干涉理论和米氏散射，发展了准波导理论，首次给出了从两个不同侧面表征准波导模谱特性的反射光强度与入射角以及散射光强度与输出角的函数关系解析式，并确认其m-线的产生源于米氏散射光及其干涉效应所致的选模作用。

In 14 patients with angiogenic tumors of the soft tissue ( 13 benign tumors and 1 malignant tumor) were analyzed. Results Benign hemangiomas included cavernous (n=7), intramuscular (n=2), mixed (n=1), racemosum (n=1), glomus (n=1) and angiomatosis (n=1). The vascular component within the tumor displayed iso-intensity on T1WI relative to the skeletal muscle, and hyper-intensity on T2WI. One case of hemangiopericytoma showed slightly low signal on T1WI and slightly high signal on T2WI.

结果 13例良性肿瘤中，海绵状血管瘤7例，肌肉内血管瘤2例，混合型血管瘤、蔓状血管瘤、血管球瘤、血管瘤病各1例，瘤血管成分在T1WI上呈等信号，T2WI上呈高信号，肿瘤有不等量的纤维组织和脂肪组织；血管外皮细胞瘤1例，T1WI上呈略低信号，T2WI上呈略高信号。

Armillary light source could provide light intensity from surrounding to center, and the intensity of light changed gradually.

固定数码相机拍摄设置，在同样光强度但投射方向不同下拍摄同一色标，比教色标上同样点的色度值，检测色度值是否发生变化及其规律。

The measurement results show that the intensity increases rapidly with discharge voltage at a lower voltage range, but the speed slows at the higher voltage range, for constant gas pressure of 130 Pa; and the intensity increases backwardly with gas pressure at constant discharge voltage of 6.4 kV.

实验数据显示，保持气体压强p=130 Pa不变，在电压较低时，光谱强度随电压增长较快，在电压较高时，光谱强度增长较慢；保持放电电压U=6.4 kV不变，光谱强度随气压增长逐渐变小。

The photosynthetic rate is the highest at 40μmol/m^2s. The light intensity for photosynthesis of Batrachospermum longipedicellatum. is saturated light intensity. The light compensation points increase with the rise of water temperature. They are 4.5, 5, 5.6, 6 and 7μmol/m^2s at 5℃, 10℃, 15℃, 20℃ and 15℃ respectively.

长柄串珠藻的光补偿点随温度的升高而升高，5℃、10℃、15℃、20℃和25℃的光补偿点分别为4.5μmol/平方公尺s、5μmol/平方公尺s、5.6μmol/平方公尺s、6μmol/平方公尺s和7μmol/平方公尺s。

Is a small freshwater alga suitable to live in an environment where both water temperature and light intensity is relative low. The optimum water temperature of 15℃ and the optimum light intensity of 35μmol/m^2s~45μmol/m^2 s are needed for photosynthesis of Batrachospermum longipedicellatum.

其光合作用的最适水温为15℃，光合作用的适宜光强为30μmol/平方公尺s~50μmol/平方公尺s，最适光强度为35μmol/平方公尺s~45μmol/平方公尺s，40μmol/平方公尺s光合速率最高峰，为其饱和光强。

Resonance light scattering spectrum of cadmium- phenanthorline- bromophenol blue system has been studied. The effects of interference substances and optimization of procedure have been investigated. In the presence of Tris-HCl(pH=9.60),Cd2+ reacts with Phen to form the chelate cation, which further reacts with acid dye of BPB to form an ion-associated complex. Then, the complex molecules are accumulated to particles by virtue of hydrophobic forces and other molecular forces. This results in significant enhancement of RLS intensity, and the enhanced intensity of RLS at 638nm is proportional to the concentration of Cd~(2+).

研究了镉-邻菲罗啉-溴酚蓝体系在碱性条件下的共振光散射光谱特征，考察了体系的影响因素和最佳反应条件，研究表明，在pH=9.60的Tris-HCl介质中，镉与邻菲罗啉形成络阳离子，再与酸性染料溴酚蓝形成离子缔合配合物，在疏水力等分子间作用力下，缔合物分子聚集形成缔合微粒，溶液的共振散射光显著增强；在638nm处RLS增强程度与镉浓度成线性关系，线性范围为0-3.20mg/L，检出限为4.50ug/L。

The present paper analyzes causes to the breakdown of the wire rod such as the central shrinkage cavity and carbon segregation, surface transverse cracks, harmful structure of bulky pearlite and web shaped carbonide and puts forward a few relevant measures for improvement in the physical product quality and reduction of fracture rate of the wire rod including proper control of the casting temperature,drawing speed, intensity of secondary cooling as well as adjustment of the intensity of control rolling and accelerated cooling and optimization of the drawing parameters.

通过对中心缩孔和碳偏析、表面横裂纹、粗大珠光体或网状碳化物不良组织等引起断丝原因的分析，提出通过合理控制浇注温度、拉速、二冷强度、控轧控冷强度及拉拔工艺参数等措施，改进盘条实物质量，降低断丝率。关键词 SWRH82B/SAE1080；脆断；质量分析；工艺控制

With the light intensity decreased, Fv/Fm、Fv/F0 increased and the ratio of chla/chlb droped dramatically, so Celtis julianae 'Aurea' can adapt to the low light intensity.

随着光强的降低，PSⅡ最大光化学效率、PSⅡ的潜在活性（Fv/F0）呈增加趋势，而叶片中叶绿素a与叶绿素b的比值显著下降，说明金叶珊瑚朴可以适应弱光环境。

Effect of different surfactants on the UV intensity of Al(superscript 3+)-MXFX have been studied. Is Cetyl Trimethy-lammonium Bromide can increase the UV intensity of Al(superscript 3+)-MXFX is discovered. Based on this reaction, the reaction conditions in detail and proposed a simple, rapid and sensitive new method for the determination of MXFX by UV method is inve stigated. This method has been applied for the determination of MXFX in tablet with satisfactory results.

通过研究不同表面活性剂对Al(上标 3+)-莫西沙星体系紫外特性的影响，发现十六烷基三甲基溴化铵对该体系有显著的增敏作用；系统研究了CTMAB-Al(上标 3+)-MXFX反应体系的紫外特性，利用这一反应体系，建立了简单、快速、灵敏的测定莫西沙星的紫外分光光度法，选择了最佳实验条件，并将此方法用于莫西沙星片剂的测定，结果满意。

We stopped by the old fashion ice cream parlor Manhattan Beach Creamery for some refreshment. The "No Shoes, No Shirt, No Problem" sign on the wall epitomizes the beach lifestyle.

我们去商店区的一家老式冰淇淋店坐坐，墙上挂著「没鞋，没上衣，没问题」的牌子完全捕捉了海滩生活的随性及风格。

"If therefore", argues Bellarmine we can offer our prayers and our satisfactions in behalf of those detained in purgatory, because we are members of the great body of Christ, why may not the Vicar of Christ apply to the same souls the superabundant satisfaction of Christ and his saints--of which he is the dispenser?

" "因此，如果"，认为贝拉明（德indulgentiis ，十四）"我们可以提供我们的祈祷和我们满意的代表那些被拘留在炼狱，因为我们是成员的伟大基督的奥体，为什麼可能不是牧师基督适用於同样的灵魂满意的过剩是耶稣和他的圣人-他是在配药？