光源

A comparison of photosynthetic rate, transpiration rate, w ater use efficiency, stomatal conductance, intercellular CO 2 concentration and vapor pressure deficit at the leaf surface between Poaceae C 4 plants (Chloris virgata and Setaria viridis) an d Chenopodiaceae C 3 plants (Chenopodium album and Chenopodium glaucum) under the simulated photosynthetic radiation was conducted in this st udy.

利用人工模拟光源研究了两种 C4 光合途径禾本科植物和两种 C3光合途径藜科植物的光合速率、蒸腾速率、水分利用率、气孔导度、胞间 CO2 浓度及叶面饱和蒸气压亏缺随模拟光辐射增强的变化规律及 Gs、Ci、Vpdl对 Tr和 WUE的影响。

The normal choriocapillaris of the New Zealand rabbit was used to test photodynamic effect by HMME, which dose was HMME 5mg/kg body weight and was activated by 532nm laser with fluence of 20, 30, 45 and 60 J/cm within 10 seconds after intravenous injection of HMME.

①以新西兰兔正常脉络膜毛细血管层为实验对象，HMME注射剂量为5mg／kg，波长532nm激光作为激发光源，眼底光斑功率密度为200、300、450和600mW／cm~2，照射时间为100s，照光时机为注射药物结束后10s。

With the three axes circumrotation method, the position of the incident laser is unchanged, and the conversion from the complicate three-dimensional spatial position relation into a two-dimensional plane is realized, by adjusting the relative positions of the detector and the target with certain spatial conversion relation.

采用三轴旋转方式，保持入射光源的位置不变，调整探测器和待测目标的相对位置，配合一定的空间转换关系，实现了将复杂的三维空间位置关系转换到二维平面进行调节。

By using TiO〓 and Ag-TiO〓 as photocatalyst, 257nm wavelength UV as light source, methylene blue and phenol as model compounds, photoregenerations of wooden and coaly activated carbons were performed in suspension system and immobilized system respectively.

以TiO〓和Ag-TiO〓为光催化剂，主波长257nm的紫外杀菌灯为光源，亚甲基蓝、苯酚为模型化合物，分别研究木质、煤质活性炭在悬浮钛体系及负载体系的光再生。

Placed on the bracket, the optical and illumination jointly constitute the colposcope system.

光学和光源等部件分别放置在支架上，组成一套完整的立体阴道镜系统。

When end surface is neglected, the reflective energy will return to the filament efficiently if the filament is at the centre axis of the columniform lamp shell. 3 Compared with the straight tungsten filament that has a smooth surface, the helical one obtains higher absorbance which can achieve 0.6~0.7 under the actual screw pitch measurement.

当灯的管径为10 mm，而灯丝外径为1.5 mm时，节能可达12%到13%。2）对圆柱形灯外壳，在不考虑端面影响时，光源的灯丝若处于外壳的中心轴上，则反射的能量会有效地返回灯丝。3）螺旋结构的灯丝比表面光滑的直钨丝有更高的吸收率，灯丝绕成螺旋后在现行的螺距尺寸下吸收率能达到

It has also been noted that compressively strained quantum well materials are more preferable for the fabrication of IEL integrated devices, as they manifest a wider gain spectrum and a more significant bandgap shrinkage effect.

同时，由于压应变量子阱材料可以获得更宽的增益谱以及更明显的带隙收缩效应，因而更适合应用于同一外延层结构集成光源的制作。

Grounding 接地 24.1 All conductive parts of a product not intended to be electrically live that are accessible to persons (including during maintenance and repair), and are capable of inadvertently becoming energized, shall be grounded by being conductively bonded to a common point that incorporates provision for grounding of the luminaire.

24.1 所有并非意指人易接触并且电流有可能突然加强的产品应该与光源接地端一体化的通过导线结合在一个共同点上。

The one or more impairments are compensated for by employing an optimization process in the optical network such that the optical signals from the source or sources of the impairments are controllably adjusted at any particular node in the network.

对此一个或多个的减损，用光网络内的优化过程进行补偿，使来自减损的一个或多个光源的光信号，可控地在网络的任一特定节点上加以调整。

And this paper also shows the structure and parameters of the optical system. The Xenon light of super high voltage is used as interferential source. The position of it is on the focus of the reflector of ellipsoid surface. After reflecting, its lights form a collective point . This point and objective focus of collimation lens are superposition. Though the collimation lens, the beam of light become parallel lights. Then though the Coude Reflector and radiation system of special prism, the lights become a beam of light with 3 ° emanative angle.

该光学系统选用超高压氙灯作光源，使其位于椭球面反射镜的一个焦点上，发出的光线经椭球面反射后所形成的汇聚点与准直负透镜组的物方焦点重合，光束经准直系统后变为平行光束，此平行光束再经库德反射镜和特殊发散棱镜系统，形成具有3°发散角的发散光束，用来干扰敌方设备。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。