“blocking and wedging”的概念、定义、翻译、参考文献-科学参考

单词	blocking and wedging
释义	blocking and wedging [¦bläk·iŋ ǝn `wej·iŋ] ^{MINING ENGINEERING} A method of holding mine timber sets in place; blocks of wood are set on the caps directly over the post supports and have a grain of block parallel with the top of the cap; wedges are driven tightly between the blocks and the roof.
随便看	international henry International Ice Patrol international index numbers international Morse code international nautical mile international ohm International Polar Year international practical temperature scale International Quiet Sun Year international radio silence international rules of the road international signal code international spheroid international standard annealed copper international synoptic code international system of electrical units International System of Units international table British thermal unit international table calorie international telecommunications service international telegraph alphabet International Telegraphic Consultative Committee code 2 international thread international unit international volt

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