Thus the study of PbWO_4 crystal with high light yield is paid considerable attention to develop its applications in medium and low energy such as PET detector.
因此,提高钨酸铅晶体的光产额以使其在PET装置等低能领域获得应用已成为近年来钨酸铅晶体的研究热点。
The motives of the experiment are two: one is to improve the quality of the crystal, to decrease the macroscopic defects and the other, to improve the light yield of the crystal.
实验主要围绕提高晶体的质量、减小晶体宏观缺陷和提高晶体光输出性能两个方面进行。
Cerium-doped orthoaluminate(YAP:Ce) is a kind of scintillator with high light yield and fast decay time, which makes it a good choice for applications in high-energy physics and medical imaging.
YAP晶体具有优良的闪烁性能,其主要特点是衰减时间短,光产额大,在高能射线探测、核医学等方面有着广阔的应用前景。
The scattered light was not favorable to the yield and quality of Flammulina velutipes.
散射光照射不利于金针菇产量与品质的提高。
With the aid of a tracking motor, the CPV cells, which are attached to a pillar, follow the sun precisely to achieve an optimized yield of solar light.
通过一组追踪器的辅助,安装在一个柱子上的CPV电池可以精确的追踪太阳从而达到产生最佳太阳光线的效果。
To generate useful energy, plants have evolved very sophisticated "nano-machinery" which operates with light as its energy source and gives a perfect quantum yield of 100%.
为了产生有效能,植物进化出了异常精密的“纳米机器”,它以光为能量来源,光能转化率达到了完美的100%。
Martin Fridson argues the defaults on high yield are at historic lows: about 3% now versus 4.5% historically – which puts the spreads in a different light.
马丁•弗里德森争辩说,对高收益的拖欠亦创下了历史最低记录:现在只有近3%,历史均值为4.5%。 这样,又需要换个视角来看待息差。
The high sulfur content of its sour crudes makes it different to yield the light products that meet the increasingly stringent environment standards.
酸性原油的高硫含量可产生特殊的轻油产品,符合日益严峻的环境需求。
High dividend payments have been a ray of light for shareholders: On average, the big Banks pay out almost a third of their earnings, for an average dividend yield of about 4.7%.
对于股东来说,高股息支付已成为一道曙光:平均来看,四大国有银行将收入的近三分之一用于派发股息,平均股息收益率约为4.7%。
If the empiricists keep doing their part by measuring and publicizing the benefits these practices can yield, more and more organizations will see the light.
如果经验论者持续进行下去,度量和宣扬这些实践可以产生的益处,那么越来越多的组织将会看到光明。
Light intensity during the reproductive period is the key environmental factor determining soybean yield.
生殖生长期间的光照强度是决定大豆产量的关键环境因素。
The study compared the performance, growth, physiology, American ginseng yield and quality of Light-Rain transmission and light transmission shed.
研究单透棚和双透棚两种棚式性能及对西洋参生育生理、产量品质的影响。
The formulation system is of the characteristics of long mobile time, light settling, small plastic viscosity and yield value, higher compression strength etc.
所研究的水泥浆配方体系具有:可流动时间长、沉降轻微、塑性粘度和屈服值小及凝固后具有较高的抗压强度等特性。
The effects of operation conditions on ether yield of hydro-etherification of three light FCC gasoline fractions and the reaction characteristics of these fractions have been investigated.
本文考察了各种工艺条件对不同催化裂化汽油轻馏分临氢醚化反应醚收率的影响和各馏分反应特点。
Scattered light was not favorable to the yield and quality of Flammulina velutipes.
散射光照射不利于金针菇产量与品质的提高;
The effects of light distribution in maize population on grain yield and quality were studied by determining the light distribution character among different plant densities.
通过测定不同种植密度玉米群体的光能分布,研究了群体光能分布特征对玉米产量和品质的影响。
Effects of different spacing form, density on structure of population, light distribution and yield of phaseolus vulgaris were studied under the high yielding condition.
研究了在高产条件下,不同行距配置、密度对奶花芸豆群体冠层结构、光能分布与利用特性及产量构成的影响。
Regressive integration curve based on thermal and solar light data and rice yield from Han-Zhong Institute Agricultural Science is coincident with the actual rice production of Hanzhong basin.
利用上方法计算了汉中地区农科所的水稻产量及光温资料,所得光温回归积分函数曲线与汉中盆地水稻生产实际相吻合。
The results showed that the fruit yield, net photosynthetic rate were the highest and the night respiratory rate was the lowest under 70% light intensity.
结果表明: 70 %光强下甜椒产量显著提高, 植株净光合速率最高,夜间呼吸速率最低。
The effect of temperature and light on development and lint yield of short-season cotton variety Zhongmiansuo16 was studied within three years.
以中棉所16号为试验材料,经三年试验,研究短季棉在不同年际间气温、光照条件的差异及对生育进程和皮棉产量的影响。
The opaque oil film reduces the quality of light and affects the sea-air exchange so that the sea reduce the oxygen yield which cause marine lives death of suffocation.
不透明的油膜降低了光的通透性,影响海区的海空物质交换,从而使海洋产氧量减少,海洋生物多被窒息而死。
Weak light is one of the important environmental characteristic in the protected cultivation, and the shortage of light is greatly influencing the yield and the quality of the vegetable products.
弱光是设施栽培中一个重要的环境特点,光照不足严重地影响着蔬菜产品的产量和品质。
The intensity of light inside the tree crown influence flower bud of the tree body, bloom, fruit-setting, yield and quality of the fruit.
树冠内光照强度直接影响树体的花芽形成、开花坐果、果实的产量、质量。
Results showed that the stronger the pruning the bigger light density and yield and biomass of peanut were.
结果表明:随修枝强度的增大,不同处理间作田相应位置的光照强度增强,花生的产量和生物量也随之增加。
As increasing of heavy oil component in raw oil and rising of light oil yield, this result in stricter requirement for lift pipe reactor of oil refining unit.
由于原料油不断重质化,而且要求轻质油收率不断上升,因此对炼油装置提升管反应器的要求更加苛刻。
The relationship between the growth period, yield component of japonica hybrid rice 80 you 121 and accumulated temperature, light duration was studied.
对杂交中粳80优121在8个不同播期下的生育期、产量因素、理论产量与影响产量因素总积温、光照时数的相关研究。
Its properties are ideal for loudspeaker cones being extremely rigid, yet light enough to yield high overall efficiency.
它的特性是理想的扬声器锥是非常严格的,但光照充足,产生综合效益高。
The result showed that the cracking performance and light oil yield can be improved significantly, compared with the old catalyst Y-15.
试验表明,该催化剂的裂化性能、轻油收率均比原来用的Y-15催化剂高5%左右。
The result showed that the cracking performance and light oil yield can be improved significantly, compared with the old catalyst Y-15.
试验表明,该催化剂的裂化性能、轻油收率均比原来用的Y-15催化剂高5%左右。
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