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Because the backscattering coefficient is constant, Amazon tropic rain forest is the important calibration region.

亚马逊热带雨林的后向散射系数呈现大面积的均匀性和稳定性，故成为分布目标定标最主要的定标场。

The good location on the spurs of the Constantia Mountains, the Mediterranean climate with long, warm, sunny days, the cooling breeze from the Atlantic and Indian Ocean, the shade of the mountains and the relatively high amount of rain- all that continues to provide almost perfect conditions for viticulture.

代表着南非最好的葡萄酒，种植园位于康斯坦莎山上，地中海式的气候，常年气候温和，阳光充足，以及大西洋和印度洋的微风，高山上的遮荫和较多的降雨等等这一切都成为最理想的葡萄种植地。

The preliminary results showed that the atmosphere contaminator mainly contained SO\-2, NO\-\%x\% and suspended granule. Which caused large area acid rain with high frequency. As pollution became more serious, there were decreases in pH value and increases in the content of SO\+\{2-\}\-4 and Al\+\{3+\} in forest soil; the chlorophyll concentration also would decrease...

初步结果表明：大气污染引起珠江三角洲地区发生大面积、高频率的酸雨，主要的污染物有SO2 、NOx、悬浮颗粒物等；随着污染程度的增大，森林土壤pH值降低，SO2 - 4和Al3+质量浓度增大；马尾松、湿地松叶片叶绿素含量降低，生长衰退甚至死亡；但不同树种对大气污染敏感程度不同，种植马占相思比马尾松更能增加林地对酸雨缓冲力和提高土壤肥力。

The continuous rain set back the harvesting of the wheat crop by two weeks.

连绵不断的雨水把小麦丰收退后了两个星期。

The continuous rain set back the harvesting of wheat by 3 weeks.

连绵阴雨把小麦收割时间推迟了3个星期。

He erected some contrivance for storing rain water.

他装设了一种贮存雨水的器具。

Convection rain is the most common type of rainfall.

最常见的雨是对流雨。

Based on the radar dense data of convectional cloud on June 12,2004 in Yongdeng county,choosing two similar convectional clouds as seeding and non-seeding cloud,the remarkable changes of radar echo parameters of the seeding cloud compared with the non-seeding cloud were discussed in this paper,and the rain enhancement effect was evaluated primarily with ground observational rainfall data.The results show that many aspects of the seeding cloud,such as precipitation,life characteristic and vertical characteri...

利用2004年6月12日甘肃省永登县雷达观测对流云的加密资料，选取了2次相似对流云过程分别作为目标云和对比云，探讨了目标云作业前后较对比云雷达回波有关参数的显著变化，并结合地面雨量点观测资料对地面人工增雨作业效果进行了初步分析，结果表明：目标云在降水、生命期特征、回波垂直特征参数变化方面，表现出作业前后较对比云存在明显差异，目标云作业40 m in后地面产生0.6 mm降水，而对比云则从新生发展到减弱消散阶段经历较短的时间(30 m in)，地面并无降水产生，从而推断本次人工增雨达到了一定的预计效果。

The minimum potential region of water vapor transport vector correspond to intense heavy rainfall region, and the water vapor convergence of the heavy rain region is supplied by the hemisphere scale water vapor transport, indicating that even for a regional severe flood it must gain water vapor supply from very extensive regions.

水汽通量的势函数极小值区对应强降水区，并且暴雨区的水汽辐合是由半球尺度的水汽输送造成，这表明，即使对于该年背景的区域性大暴雨/洪水，它也必须从极大范围地区获得水汽供应。1999年水汽辐合的中心位置较1998年偏东偏南，这使得1999年降水较1998年偏南。

And the hurricanes are something that happen when we evaporate the water vapour from the sea surface, lift it up high and convert it into rain when it hits the cooler upper atmosphere.

水蒸汽从海水表面蒸发，遇到冷空气时，会形成雨，这时可能会产生飓风。

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。