In information retrieval, recall and precision are regarded as two inter-constraint measures.
在信息检索领域，查全率与查准率是一对相互制约的指标。
The environmental constraint on the construction and the impact of construction on the environment are analyzed. Environment protection measures for various construction phases are put forward.
分析研究环境对建设的制约与建设对环境的冲击，提出轨道交通建设各阶段的环境保护措施。
The first relevant constraint is the triangular shape of the small lot which, when applying the legal distance measures, almost does not allow any formal alternatives.
建筑设计的第一个限制来自于三角形的地块，如果要满足建筑退线等规范要求，几乎没有可能将建筑做成其它形状。
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