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Succulent Flora of Southern Africa
Doreen Court
出版CRC Press, 2000-06-01
主題Science / Life Sciences / Botany
ISBN90580932399789058093233
URLhttp://books.google.com.hk/books?id=W6ZfOBb-QdsC&hl=&source=gbs_api
EBookSAMPLE
註釋This practical guide describes the stage by stage development of a new method for predicting the penetration rate (PR) and the advance rate (AR) for tunnel boring machines based on an expanded version of the Q-value, Qtbm.The book also looks at logging methods and tunnel support design.