虽然还需解决许多震前困扰海地很久的问题，但这种积极性是可见的。
Such initiatives are sound, even if many are designed to deal with problems that had plagued Haiti long before the earthquake struck.
那些经历了不够好生活的人们，是在相反的极性中，反平衡了在很久前经历了好生活的祖先。
Those experiencing the "not so good life" are in polar counterbalance to ancestors that experienced the "good life" long ago.
发现这类荧光分子具有很强的溶剂敏感性，是潜在的极性微环境荧光探针的前体。
It was found that these rigid molecules are precursors of fluorescent probes sensitive to solvent polarity.
在电火花放电加工过程中，采用负极性加工时，工具电极的损耗主要是由于火花放电前几百纳秒出现的电子流对工具电极表面的轰击造成的。
In EDM process with tool as anode, tool wear is largely produced by electron current in gap during the frist hundreds nano seconds of the spark ignition.
运动估计通过比较同极性场的像素块绝对值差和（SAD）与运动阈值实现运动估计，并且利用前一场的运动信息进行鲁棒性处理，提高运动检测的精度。
Same-parity fields are used to improve the accuracy of motion estimation. It estimates the motion by comparing the sum of absolute block difference(SAD) between 4 fields with the threshold of motion.
运动估计通过比较同极性场的像素块绝对值差和（SAD）与运动阈值实现运动估计，并且利用前一场的运动信息进行鲁棒性处理，提高运动检测的精度。
Same-parity fields are used to improve the accuracy of motion estimation. It estimates the motion by comparing the sum of absolute block difference(SAD) between 4 fields with the threshold of motion.
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