You can choose to take a high-key or low-key approach, and expose to emphasize certain areas of an image over others.
这可以是件好事，因为你可以选择高调拍摄或者低调拍摄，用曝光来强调一些部分并弱化其他部分。
High quality, low bit rate image compression method is one of the key technologies to develop downhole video logging instrument.
高清晰度，低比特率的图像压缩技术是研究井下电视的关键技术之一。
At present, low culture of tourism product, unclear target and image of marketing leads to not-strong key competence of tourism products and lagged development of urban tourism.
目前，我国产品的文化开发层次低，营销目的不明确，营销形象欠鲜明，导致旅游产品的核心竞争力不强，城市旅游后劲不足。
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