克制
发表于 2025-3-26 22:37:05
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补充
发表于 2025-3-27 02:40:04
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合并
发表于 2025-3-27 09:04:33
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LANCE
发表于 2025-3-27 10:35:17
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泛滥
发表于 2025-3-27 16:34:16
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吼叫
发表于 2025-3-27 20:47:23
Mortars and concrete,Mortar for brickwork is composed of a matrix, lime or cement, and an aggregate, usually sand. If the most suitable mortar is to be selected and subsequent defects avoided it is necessary to appreciate the basic properties of the materials of which the mortar is composed.
Volatile-Oils
发表于 2025-3-28 01:21:34
Bricklaying tools,This chapter describes the traditional tools commonly used in the bricklaying process.
不安
发表于 2025-3-28 03:36:02
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猛击
发表于 2025-3-28 09:53:24
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易弯曲
发表于 2025-3-28 12:35:39
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