If the Web server was used as a security measure in the DMZ, then the proxy cannot replace it — but it can sit in the secure zone to help with the routing and load balancing.
如果将Web服务器作为DMZ中的安全措施，则代理无法替代它——但可以在安全区内帮助进行路由和负载平衡。
The model depicts aerosol optical thickness, a measure of the amount of light that the aerosols scatter and absorb, and a proxy for the number of particles in the air.
这个模型描述了气溶胶的光学厚度（一个衡量光在气溶胶里分散和吸收的物理量）以及气溶胶代替空气分子的程度。
In fact, ever since the discovery of this phenomenon, whenever astronomers cannot measure a galaxy's distance more directly they instead give an estimate using its redshift as a proxy.
事实上，从那以后，当天文学家无法找到更直接的测量星系距离的方法时，他们会以红移来代替。
In fact, ever since the discovery of this phenomenon, whenever astronomers cannot measure a galaxy's distance more directly they instead give an estimate using its redshift as a proxy.
事实上，从那以后，当天文学家无法找到更直接的测量星系距离的方法时，他们会以红移来代替。
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