This fascinating experiment showed that plants not only detect and react to specific wavelengths of light, plants can also detect and react to changes in the ratio of one wavelength to another.
这个有趣的实验表明，植物不仅能探测和对特定波长的光产生反应，还能探测不同波长比率的变化并对其做出反应。
A ratio of less red and to more far-red light would cause a reaction from the plant.
较少红光和较多远红光的比例会引起植物的反应。
Some biologists hypothesize that a plant will stop growing if it's in the shade of another plant, a reaction that's triggered when it senses an unusual ratio of red light to far-red light.
一些生物学家假设，如果一株植物处在另一株植物的荫蔽下，它就会停止生长，当它感知到红光与远红光的不寻常比例时，反应就会触发。
The ratio in which this light decreases, is precisely the same as that of the terrestrial light illustrated above, viz., according to the square of the distance.
其减弱的比率，与我们在上文中所阐述过的地面光照随距离减弱的规律是一样的，也就是说，与距离的平方成正比。
This makes them incredibly strong and incredibly light, and they've already been manufactured in strands with a length-to-diameter ratio of 132 million to one.
这使得它们非常牢固但又令人难以置信的轻，并且它们已经被用来生产出长度直径比为1.32亿的绳链。
Mark Robinson of Arizona State University, sifted through the data for telltale jumps in the ratio of ultra-violet to visible light.
亚利桑那州立大学的马克-罗宾逊，筛选了由紫外线和可见光的比率所得到的数据而得出这一结论（月球上存有钛矿）。
The ratio between the heavy and light isotopes of the element in their crystals is not quite right for stuff that has come out of the ground.
它们晶体里重轻同位素的比例并不像是从地底挖出来的东西那样。
A light aircraft typically has a lift-to-drag ratio of around 10:1; for a hang-glider, the ratio is about 15:1.
一架轻型飞机通常拥有10：1的升阻比；而对于悬挂式滑翔机来说，这个比例大概是15：1。
The ratio of reflected to incident light.
入射灯光反射的比率。
Set the ratio of light, often from dozens to thousands.
集光比的数值，往往可以从几十到几千。
The molecular extinction coefficient is equal to the ratio of the log of the intensity of the incident and emergent light .
分子的消光系数等于入射光和透射光强度对数的比。
Finally, the slip ration between the light phase and heavy phase was studied and the water cut prediction model based on the conception of slippage ratio was established.
最后，本文研究了轻质相与重质相间滑动比模型，建立了基于滑动比的含水率预测模型。
In the system, the wavelength code of strain is converted into the signal intensity, and the ratio of the signal intensity and the referent light intensity is used as the measuring value of strain.
该系统利用斜线光纤光栅将光纤光栅应变传感的波长编码信息转换为强度，并且用信号强度与参考光强度的比值作为应变的度量值。
The influences of LOA pump and probe light, DBR's reflectivity and current parameters on extinction ratio characteristics of converted signals are discussed.
着重讨论了抽运光与探测光的波长和功率、LOA中分布式布拉格反射镜（DBR）的反射率和注入电流等参量对输出消光比特性的影响。
As a result, the influence of signal light and bias current to the power and extinction ratio of converted light is studied in detail.
从而研究了待转换的信号光及偏置电流对转换光功率和消光比的影响。
The influence of the monomer, the ratio of water and acetone on the micelle size was investigated by dynamic laser light scattering.
采用动态激光光散射研究了接枝单体及水与丙酮的配比对胶束尺寸的影响。
Then it introduces a new method to test luminaire efficiency, and point out it should be called luminaire light output ratio according to the present test method.
文中给出了一种真正衡量灯具效率的方法，并指出按目前测试方法得到的比值应该称为灯具光输出比。
The primary requirements of Strehl ratio and light efficiency for optical modules in the weapon system are listed.
并列表给出武器系统中各个光学组件的斯特列尔比和光效率的初步要求。
The apparatus is a high performance-price ratio, which has been widely used in various industries in the production process parameters ceiling more sound and light alarm.
是一高性价比的仪器，它已广泛应用于各行业生产过程工艺参数越限时的声光报警。
In cultivated salvia miltiorrhiza roots light-colored periderm contained less layers of cells and low ratio of phloem to xylem compared with those in wild salvia rniltiorrhiza roots.
栽培丹参根的周皮细胞层数少、色淡，韧皮部与木质部比值小，而野生丹参根的周皮细胞层数多、颜色重，韧皮部与木质部比值大。
It is a main subject to increase signal to noise ratio of light target and pick up signals effectively so as to diffuse laser shooting simulator.
提高光靶信噪比，有效地拣出信号，成为激光射击模拟器推广应用的重要课题。
It is also found that the ratio between the two in the refracted light is monotone increasing.
对于折射光来说，平行入射面的光振动与垂直入射面的光振动振幅之比是单调上升的。
With the increasing of light intension, number, length and diameter of root and root-shoot ratio were all increased.
平均生根数、根长、根冠比和根粗均随光照强度的增强而增大。
Exception occurred on Glaucous oak with an increase in stem mass ratio under higher light.
相对地，对茎、叶部分配比例则减少，惟青刚栎之茎重率有随光量上升而增加的趋势。
The light transmissivity "t" of an object is the ratio of transmission intensity to incident intensity.
透过率(T)是透过光强与入射光强的比值。
The primary requirements of Strehl ratio and light efficiency for optical modules in the weapon system are...
并列表给出武器系统中各个光学组件的斯特列尔比和光效率的初步要求。
Considering the mixed traffic running characteristic on signalized intersection, this paper sets forth optimized cycle time, green ratio and green light interval model.
在充分考虑信号交叉口混合交通特性的基础上，提出了信号交叉口周期时长、绿信比、绿灯时间间隔优化模型。
The paper studies the influence of luminance, luminance ratio and the light sources on the lighting environment and provides reference and gist for the illumination design and further research.
目的研究亮度、亮度比、光源等因素对照明环境的影响，为照明设计的进一步研究提供参考和依据。
Honeycomb sandwich steel panel has light weight, high strength-to-weight ratio, good shock-absorbing and impact endurance.
钢质蜂窝夹芯板具有质轻、比强度高、减震、耐冲击和节省材料等优点，是一种具有良好发展前途的夹芯板。
Honeycomb sandwich steel panel has light weight, high strength-to-weight ratio, good shock-absorbing and impact endurance.
钢质蜂窝夹芯板具有质轻、比强度高、减震、耐冲击和节省材料等优点，是一种具有良好发展前途的夹芯板。
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