NFPA 1142 城市和郊区消防供水
日期:2012-02-08 13:49
ing dry hydrants
Additional Annex material on the function, operation, and use of water eductors and ejectors, which can provide a unique and important means for acquiring water from sources that are difficult to utilize with other methods.
Whether you're an AHJ, planner, developer, or code official, this Standard is a must-have on-the-job resource. (Softbound, 63 pp., 2012)
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09/12 23:44