查询词典 light intensity

The light intensity distribution was characterized by Fraunhofer diffraction when the projection of light source located in the symmetry center of rectangular aperture and the size of aperture is small enough .

根据菲涅尔-基尔霍夫衍射积分得出矩孔菲涅尔衍射的光强分布表达式，对该表达式作了数值计算，分析了矩孔尺寸对衍射光强分布的重要影响。

Results showed that the change of photosynthesis of the first whorl of leaves was similar generally between the stock and the cion, changing from leaf discolor, grey green, stable to senescent stages, and that the max net photosynthetic rate P(superscript max, photosynthetic saturated light intensity and chlorophyll content of the leaves changed continuously with the phenophases, which rose rapidly and then dropped slowly after the peak, whereas the change of their light compensation point was just the opposite.

结果表明，橡胶树籽苗芽接苗砧木和接穗第1蓬叶的光合特性变化规律基本相似，从变色期、淡绿期、稳定期，到衰老期，其叶片的表观量子效率、最大净光合速率P(下标 max、光饱和点和叶绿素含量等均随着物候期变化而不断变化，变化趋势为先迅速升高，达到最高值后缓慢下降；光补偿点的变化趋势则相反。

These leds light sources are not only adjustment and uniformity but also smaller , less expensive , required less power , generated less heat . especially , the pattern of the construct both aggregate and desegregate in design was to realize different light intensity illumination on same biology sample at the same time . the selectivity , work efficiency and experiment veracity have been improve greatly

该系列光源除了具备光强可调、分布均匀优势外，还具有波长、波峰宽适宜，以及小巧、价廉、能耗低、发热少等特点，尤其是该生物光源在设计时采用的单元组装模式，使得不同强度的光照能够在同一批生物样品上实现，大大拓宽了生物实验的可选择性，提高了工作效率和实验准确性。

The long adaptations of Dioscorea zingiberensis type low-light intensity to 10, 55, 100 and 270μmolm^(-2)s^(-1) light were tested.

对生长在10，55，100，270μmolm^(-2)s^(-1)光强下弱光生态型盾叶薯蓣的长期适应性进行了测定。

Therefore, the capacity of utilizing low light intensity of seedlings could be enhanced by cold acclimation, and the increase of photosynthetic light saturation point and the decrease of photosynthetic rate of seedlings in Euonymus radicans might be the adaptive adjustment to the cold acclimation so as to raise the stability of photosynthesis of seedlings under low temperature stress and then enhance the cold -resistance of seedlings.

由此可见，幼苗经低温驯化后，对弱光的利用能力大大提高，分析光饱和点的升高及光合速率的下降，也许是金边卫矛在冷驯化期间作出的适应性调整，提高植株在低温胁迫下光合作用的的稳定性，增强植株抗寒能力。

Light Meter: An electrical exposure meter for measuring light intensity.

测光表：用来测量光强度的一种电子曝光表。

I upped the Haze parameter to 2.0, which gives us a nice "equalization" of direct light coming from the sun, and the light intensity of the sky (Fig. 14) At lower haziness, the sunlight would be too dominant for our twilight atmosphere.

我提高Haze的参数到2.0，这将给我们提供一个与阳光笔直照射的光线同样漂亮的效果，并且天光的强度（如图14所示）降到一个朦胧的状态，这样阳光在我们的暮色氛围中将占据主导地位。

It indicated that not only can Spirulina cells grow photoautotrophically and photomixtrotrophically, but also can grow heterotroph ically under some specific conditions. light intensity, light quality, temperature, species and concentration of metals, rare

认为螺旋藻细胞不但能进行光合自养和混合营养生长，而且在某些特定的环境条件下，还能进行异养生长；光照强度、光质、温度、金属元素、稀土元素、盐度、藻体细胞浓度、溶氧水平、维生素、激素和磁场等环境因素对螺旋藻细胞的光合性能和细胞产率都有显著影响。

The simplest of all uses an LDR – a Light Dependent Resistor to detect light intensity changes on the surface of the resistor.

最简单的所有使用低剂量辐射-轻附属电阻检测光线强度的变化表面上的电阻器。

Leaf morphological structure ; leaf anatomica structure ; light intensity ; light adaptation ; shading ; plant shade tolerance

叶片形态结构；解剖结构；光强；光适应；遮荫；耐荫性

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。