但是由于其周围温度环境(辐射、热传导及对流状况等)与电机内部的发热规律不一致，所以不能对电动机进行有效的保护。
But because of the temperature environment (radiation, heat conduction and convection) and the internal heat of the motor is not consistent, so we can not effectively protect the motor.
并在此基础上，以光合有效辐射、温度和降雨量作为气候指标，分析了它们与牧草长势之间的关系。
On this basis, this paper takes effective photosynthesis radiation, temperature and rainfall as climatic indexes, and analyzes their relations with pasture growth.
本文的第一部分对天空长波辐射和天空有效温度的测定方法作了简要评述。
In the first part of this paper some typical methods for measuring sky long wave radiation and sky effective temperature are briefly reviewed.
再利用地面温度、气温、水汽压和总云量，计算得出福建省各地的地面有效辐射的月、年平均辐照度。
The ground effective radiations are calculated based on the ground temperature. air temperature. water vapour pressure and total cloud cover.
提高压力、气层厚度和降低温度可以有效地改善气体热辐射的选择性。
Increasing the pressure or the thickness of gas and decreasing the temperature can improve the selectivity of gas radiation effectively.
影响河北核桃净光合速率日变化的主要因子是光合有效辐射、叶片温度及胞间CO_2浓度。
The diurnal variation of Pn in hebei-walnut was influenced by light intensity, leaf temperature and intercellular CO2 concentration.
实验结果表明：镀CH膜是增加激光能量注入率、提高腔靶辐射温度的有效方法。
The experimental results show that CH plating hole targets have higher laser energy injection efficiency.
叶片温度对水稻蒸腾速率的影响最大，光和有效辐射强度次之，空气湿度最小。
Leaf temperature is the most tremendous influence factor to the transpiration rate, the next is photosynthetically active radiation, air humidity is the smallest influence factor.
为了更精确的测量温度和有效辐射面积的时变特性，引入了一种新的多比色测温技术。
A novel multi-colorimetric technology is introduced to measure precisely the temporal evolutional characteristics of temperature and emissivity-area products.
云顶性质包括云顶气压、云顶温度和有效云量或有效比辐射率。
Cloudtop properties include cloudtop pressure, cloudtop temperature and cloud effective emissivity.
栽培方式对叶幕叶片光合有效辐射截留、叶果际温度微气候产生显著影响，T架与篱架叶幕温度微气候优于棚架；
Training systems had great influence on the leaf PAR capture, leaf and fruit temperature microclimate. Canopy temperature microclimate was better in T-bar and hedgerow trellis than in pergola trellis.
栽培方式对叶幕叶片光合有效辐射截留、叶果际温度微气候产生显著影响，T架与篱架叶幕温度微气候优于棚架；
Training systems had great influence on the leaf PAR capture, leaf and fruit temperature microclimate. Canopy temperature microclimate was better in T-bar and hedgerow trellis than in pergola trellis.
应用推荐