辐射

In this study, we investigated the protective effects of NaHSO3 on the physiological and biochemical processes of Phaseolus vulgaris leaves under enhanced UV-B radiation.

为了减轻UV-B辐射对植物叶片的伤害，本研究以离体红芸豆叶片为实验材料，通过外源施加NaHSO3的方法探讨了UV-B辐射下NaHSO3 对离体红芸豆叶片的保护作用。

Wavelength-selective or photoselective mulches absorb photosynthetically active radiation and transmit solar infrared radiation.

波长选择性或光选择性塑膜吸收光合活性辐射并传递太阳红外辐射。

On the basis of observation on the incident and transmitted photosynthetically active radiation of the winter wheat canopy under the monoculture and intercropping ways, the diurnal change of interception photosynthetically active radiation, the relationship between IPAR and leave area index, and the shading of the winter wheat were studied.

文章摘要：通过对单作和间作种植模式下作物冠层入射和透射光合有效辐射的观测，研究了不同种植模式下冠层光合有效辐射截获量的日变化规律及其与叶面积指数的关系以及冬小麦对预留行的遮荫作用。

The extinct coefficients being greater for photosynthetically active radiation than those for total radiation are closely related to the inverse proportion of solar altitudes (sinh0) during one day.

光合有效辐射的消光系数大于总辐射的消光系数；一天中，群体下部的光照条件以中午前后为佳，消光系数最小；k值与太阳高度角的正弦成反比。

In the submodel, the reflection coefficient of the canopy changed with the sine of the solar angle and the relationship between the extinction coefficient for photosynthetically active radiation and PDT was quantified.

模型引入高斯积分法简单有效地计算冠层每日的总光合量，并考虑了冠层辐射反射率的日变化及消光系数随生理发育时间的变化，使模型对冠层辐射吸收与光合作用的定量更加准确。

Based on the data of seeding rate and root growth,it is concluded that the semi-lethal radiation dose of Platanus acerifolia Willd.dry seed was 50Gy,and the suitable dose range for radiation breeding was 50 to 250Gy.

通过对悬铃木辐射组与对照组成苗率和根长进行比较，初步推测悬铃木辐射的半致死剂量为50Gy，辐照诱变的适宜剂量为50至250Gy。

The performance of two models pyranometer (model DFY4 and model TBQ-2) made in China has been tested.

根据WMO和ISO关于对总辐射表的性能指标的要求，对我国气象观测台站使用的总辐射表(型号为DFY4和TBQ - 2 )进行了全面的性能测试。

The characteristics of two models of pyranometer (model DFY4 and model TBQ 2, made in China) has been tested.

根据WMO和ISO关于总辐射表的性能指标，对我国气象观测台站使用的总辐射表(型号为DFY4和TBQ 2 )进行了全面的性能测试。

In this article a new type of pyrometric calorimeter is introduced. The authors have carried out many experiments which prove that this type of calorimeter has many advantages, that its performance characteristics can essentially meet the demand of a boiler test and that it can be recommended for us...

本文介绍一种新式辐射热流计，作者曾进行过多次实测，证明这种辐射热流计有较多的优点，性能基本适合锅炉试验要求，可以推荐使用。

Natural convection, natural wind and sun radialization bring the change of temperature. The most important factor is natural wind and sun radialization.

碎块石护坡和路基内的温度场受到自然对流、强迫对流和太阳辐射的影响，其中最主要的影响因素是强迫对流和太阳辐射。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。