The first lighthouse made of interlocking masonry blocks was built on the treacherous Eddystone Rocks reef, Off Plymouth, England (1759).
第一座用石块砌成的灯塔在1759年建于英国普里茅斯港近海的不牢靠的涡石礁上。
Rocks material used for masonry shall comply with the requirement of the drawing and the regulations of Section 413.
石砌体所用材料应符合图纸要求及本规范第413节的规定。
At the bottom of the 2, pulling the bottom rocks must ensure the flat pad stability, and could not shake, in order to masonry mountain.
拉底的山石底部一定要垫平垫稳，保证不能摇动，以便于向上砌筑山体。
At the bottom of the 2, pulling the bottom rocks must ensure the flat pad stability, and could not shake, in order to masonry mountain.
拉底的山石底部一定要垫平垫稳，保证不能摇动，以便于向上砌筑山体。
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