避开
发表于 2025-3-23 10:30:44
Excavating and Timbering,When trenches are excavated for works such as foundations or drain laying, the sides may have to be supported. The main reasons for carrying out timbering to trench sides are
躺下残杀
发表于 2025-3-23 14:05:46
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Water-Brash
发表于 2025-3-23 21:24:27
Bricks,A brick is defined as a walling unit not exceeding 337.5 mm in length, 225 mm in width and 112.5 mm in height. Apart from metric modular bricks, which are discussed later, it is usual for the length of a brick to equal twice the width plus one joint and three times the height plus two joints (see figure 6.1).
Cacophonous
发表于 2025-3-23 23:41:43
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SAGE
发表于 2025-3-24 05:52:49
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Redundant
发表于 2025-3-24 09:43:31
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不发音
发表于 2025-3-24 13:00:23
Textbook 1990Latest editionIn three excellent, up to date concise volumes the authors deal thouroghly with brickwork and its associated subjects. The student is provided with an introduction to the industry, the trade, the skills and the structures, and reflecting the 1990s, emphasise safety aspects and considerations. Includes multi choice questions and answers.
滔滔不绝地讲
发表于 2025-3-24 15:52:25
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interrupt
发表于 2025-3-24 21:09:06
H. Bailey and D. W. Hancock 1990
懒鬼才会衰弱
发表于 2025-3-24 23:34:56
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