查询词典 phototaxis

See aerotaxis; chemotaxis; phototaxis.

参见 aerotaxis； chemotaxis； phototaxis 比较 nastic movements； tropism

Some common types of taxis include phototaxis, chemotaxis, and magnetotaxis.

一些常见类型的的士包括趋光性，趋化，并magnetotaxis 。

The spectral and intensity reaction from the cotton boll worm moth were measured by using phototaxis behaviour method, at 14 monochromatic light selected through 340nm to 605nm and white light.

运用室内行为实验方法研究了不同波长单色光和白光刺激的棉铃虫HelicoverpaarmigeraH櫣bner）］成虫趋光、避光反应及其与光强度之间的相互关系？

Practically all photobiological behavior of plants and animals-photosynthesis, phototropism, phototaxis,photoperiodism, and vision-utilize this range of radiation.

事实上，所有动植物的光生物行为——光合作用、向光性、趋光性、光周期和视觉——都利用这一辐射范围的能量。

For instance, phototaxis would be movement in response to light.

例如，趋光性将运动的反应轻。

This ability is crucial for phototaxis the swimming towards light exhibited by many zooplankton larvae.

这对于动物的趋光性是非常重要的，很多浮游动物的幼体都表现出了这种趋光性。

Chloroplasts also show phototaxis,and take up specific orientations in relation to the direction of the incident light.

叶绿体也显示出趋光性，依据入射光的方向来调节其特殊方位。

In the region of light intensity between 1—400 lx,phototaxis of the beetle increased with light intensity.

在光照为1～400 lx范围内，趋光性随光照强度提高而增强。

It is so concluded that both the perception to light and subsequently phototaxis behavior of C. pallens depend on the light intensity obviously, there is no visible photophobism response in any case, and the response of primal receptor cell potential is accordant with the phototactic behavior in a certain range of light intensity, indicating that light intensity plays a subtle role during the light perception and succeeding phototaxis.

这些结果表明：光强度是大草蛉感光性与趋光性行为的重要决定因素，强光时感光性电位反应与趋光性行为反应基本一致，弱光时则不同，暗示了光强度信息在感光性和趋光性间作用的有条件性和复杂性。

The results were as follows:(1) The spectral sensitivity response at 14 monochromatic light selected through 340nm to 605nm occurred in curve with multiple peaks, the primary peak in 340nm (ultra-violet) is the highest response rate of phototaxis (21%), the secondary in 524nm, and the rest in 400-440nm and 483nm in order;(2) The response rate of phototaxis is increasing as the relative intensity of light, it is showed as curves with inverse "L" shape in white light and the monochromatic light of 483nm, as an upward ladder at 524nm and a near straight line at 340nm. However, the response rate could be detected at the lowest intensity and not arrived to the summit at the strongest yet;(3) The effect of sex to response to the spectral sensitivity and intensity is not significant;(4) There was not significant photophobism response to light for the ladybird, the behavior probably derived from phototaxis or partly due to random movements. It can be concluded that both the spectrum and intensity of light stimulus gave rise to the phototaxis of P.

结果显示：（1）在340~605nm波谱内其光谱趋光行为反应为多峰型，峰间主次不明显，紫外340nm处峰最高，趋光反应率达21%，其它各峰依大小次序分别位于绿光524nm、蓝光400~440nm和483nm处；（2）随光强增强其趋光反应率增大，白光和483nm刺激时其光强趋光行为反应呈一倒"L"型式样，524nm时呈一阶梯型，340nm时为一较平直的线型；光强最弱时仍均有一定趋光率，最强时均未出现高端平台；（3）性别对其光谱和光强度行为反应均有一定影响，但影响不大；（4）龟纹瓢虫无明显的避光反应，其避光行为可能是趋光行为衍生或其随机活动造成。

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。