查询词典 luminous flux

But astronomers think that sunspots are magnetic flux tubes, because nobody knows how to produce these large circular electric currents of long solenoids.

但是，天文学家认为太阳黑子是磁流量管，因为没有人知道怎样产生长螺旋线圈中的大环电流。

The study of the effect of vegetation on snow ablation can be used to predict the snowline, glacier and water level. The snow ablation is observed in the Picea crassifolia, shrub, frost edge and grassland of sunny slope at the altitudes between 2600 and 2700m from 2003 to 2007. The daily variable of snow depth and the change of snow coverage and the sensible heat flux of snow surface are used to determine the snow ablation at Pailugou Basin of Water Conservation Forest in the Qilian Mountains. The observation began with the snowfall in October and ended at the completely ablation of snow in May, and got 1344000 observation data.

为研究祁连山植被对积雪消融的影响，利用人工调查积雪深度逐日变化量和积雪盖度变化，并结合空气雪面感热通量观测，对祁连山水源林生态站排露沟流域海拔2600~2700 m青海云杉林、灌丛林、林缘、阳坡草地在2003-2007年的积雪消融进行了研究，每年的观测从10月降雪开始到翌年5月积雪消融完结束，共获取数据134 400个。

Mo silicides with good properties were synthesized by using metal Mo ion implantati on with large ion flux.

用大束流密度的钼金属离子注入硅，能够直接合成性能良好的薄层硅化物。

Reactive flux also provide a nearly disoxygen environment which is good for the synthesis of group-5-metal sulfides and selenides.

但是第5族元素极易与氧结合而难以得到硫硒化合物，尤其是多元化合物，而反应性融盐法提供了一个近似绝氧的环境。

The dimension parameters of the magnetic flux converging structures with opposite pole teeth for magnetic fluid sealings were optimized by two dimensional finite element methods.

采用有限元方法对对齿聚磁结构参数进行了优化分析。

The measurement results show that oxygen flux and ratio of converter capacity have great effect on splashing cap...

测定结果表明，氧气流量、炉容比对喷溅量影响较大；氧气流量、枪位高度对穿透深度有重要影响。

The number of lift-off sand grains percent time percent sand bed area Based on the lift-off velocity distribution function of saltating sand grain, this thesis gains the number of lift-off sand grains percent time percent sand bed area which ranges from 6796 to 8846900 number/(s·m2) by combination motion model of single saltating sand grain and some motion parameters of saltating sand grains and the flux of wind sand current from wind tunnel experiment.

单位时间单位面积沙床起跳沙粒数利用本文获得的沙粒起跳初速度分布函数，结合沙粒跃移运动学模型以及风洞实验中获得的沙粒跃移运动参数以及输沙量，反演出一定风场条件下单位时间单位面积沙床起跳沙粒数，变化范围6796-8846900个/(s·m2)，并满足。

Under a pressure drop of 0.4 MPa, the water flux of the prepared membrane is 11.1 Lm^(-2)h^(-1), and the retentions of various salts by the prepared membrane are less than 40%, while the retention of polyethylene glycol 1000(PEG 1000) is up to 94.02%.

在0.4MPa下，膜对无机盐的截留率均低于40%，对PEG1000的截留率则达到了94.02%，该膜的纯水通量为11.1Lm^(-2)h^(-1)；能截留低分子量有机物而透过盐，表明该膜可以用于有机物与盐混合溶液的分离。

When pressure is 0.5MPa, with obtained γ-Al2O3 NF membrane, the retentions of hardness, sulfate and chroma were 55.5%, 52.1% and 83.0% respectively, and the retention of foreign taste is very high. The flux of membrane is 21.76L/m2·h.

在跨膜压差为0.5MPa时，自制的γ-Al2O3 NF膜对该污水的硬度、硫酸盐和色度的脱除率分别为55.5%、52.1%和83.0%，而且对异味的脱除率较高；膜的通量为21.76L/m2·h。

It could obtain the best performance of flux, retainment of tea composition and flavor under such operate condition.

经过热加工的茶汤在蓊游离胺基酸、还原糖、catechin、EGCg、ECG比膜过滤还高，但在清除DPPH和螯合亚铁离子的表现上，却比膜过滤还要佳。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。