查询词典 ideal conditions

The result showed that the luminous flux for LW white LED radiation power output is 298.7 lm and the total photons are 2.7×1018. If under ideal conditions, one electron-hole pair injected yields one blue photon and the quantum efficiency of the phosphor equals one, the numbers of electron-hole pair must equal to the numbers of white photons.

在理想情况下，注入一个电子-孔穴对产生一个蓝光光子，设荧光粉的量子效率为1，因此，注入的电子-孔穴对数亦等于白光光子数，进而计算出白光LED每辐射1 W的光功率所需的电功率为1.51 W，上述白光LED发光光谱对应的白光LED的电-光转换的理论极限流明效率为197.8 lm/W。

Even in ideal conditions an individual phytoplankton only lives for about a day or two.

即使在理想条件下，浮游植物的存活时间也只有1、2天。

If you're a professional astronomer working with a large installed telescope, you probably already have plenty of equipment to let you know when it's the ideal conditions to stargaze.

如果你是一个用大型望远镜工作的专业天文学家，你很可能已经有很多设备协助你在最佳的时间段来观测星相。

This region of tropical rain-forests, with its moist, windless climate and constant warmth provides ideal conditions for the growth and well-being the cocoa tree.

湿热无风的热带雨林气候为可可树的生长提供了良好的环境。

DUnder ideal conditions, water films covering the metal surfaces can absorb most incident radiation.

d 在理想条件下，水膜覆盖金属表面可以吸收大部分突发情况的辐射热。

Result:(1)Tau prevented neurons against Mn toxicity of low and middle concentrations. The ideal conditions can reach upon 4. 5 mM Tau added just, nearly no apoptosis cells could be detected.(2)The percentages of apoptosis intogether were lower than those in Mn just , being concentration-dependent relations with Taurine levels.(3)Mn induced DNA damage of neurons with dose-depedent, The higher of Mn concentration, the lengther of the comet tail and the higher percent comet-like cells. Tau incubated could weaken significantly the lesions of Mn towards DNA on the degree.

结果：(1)牛磺酸对中低剂量锰的毒性有一定的拮抗作用，单独加入牛磺酸效果最好剂量是4.5mM，视野下几乎不见凋亡细胞；(2)牛磺酸干预后培养神经细胞凋亡率低于相同剂量的单纯锰培养细胞组，且与牛磺酸浓度呈剂量依赖性；(3)锰引起培养神经细胞DNA损伤，表现在彗星尾长增加，彗星样细胞百分率增加；加入牛磺酸干预后，可明显改善锰造成的培养神经细胞DNA损伤。

Louden that the grass would deliver the desired effect but could also grow up to two feet in ideal conditions.

塔内古奇说，他当时告诉雅虎公司和劳登女士，这种草能达到他们希望的造型效果，但在环境条件适宜的情况下，它们有可能长到两英尺高。

Mr. Taniguchi says he told Yahoo and Ms. Louden that the grass would deliver the desired effect but could also grow up to two feet in ideal conditions.

塔内古奇说，他当时告诉雅虎公司和劳登女士，这种草能达到他们希望的造型效果，但在环境条件适宜的情况下，它们有可能长到两英尺高。

Lyrid rates vary from year to year, with the peak averaging around 20 meteors per hour under ideal conditions.

天琴座流星雨的密集度年复一年的发生变化，理想状态下的峰值平均在每小时20颗左右。

Benieficial bacteria like Nitrosomonas and Nitrobacter colonize the pore walls to promote ideal conditions for the biologican removal of ammonia and nitrite.

有益的细菌像亚硝化毛杆菌与硝化杆菌依附在孔壁上以加速对于氨与硝酸盐清除的理想环境。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。