sultry
发表于 2025-3-23 12:58:50
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高尔夫
发表于 2025-3-23 17:19:20
The Manufacture of Joinery Items,e marking out of the material, some knowledge of the material itself is needed. The type of timber required for a piece of work will, of course, have already been decided, but the.person responsible for the manufacture of the item must be able to select suitable boards for the job.
TRAWL
发表于 2025-3-23 19:01:16
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parallelism
发表于 2025-3-24 01:47:09
https://doi.org/10.1007/978-1-349-06901-9civil engineering; engineering
bibliophile
发表于 2025-3-24 03:37:23
Macmillan Publishers Limited 1985
伙伴
发表于 2025-3-24 07:23:17
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adequate-intake
发表于 2025-3-24 12:46:13
Supports to Buildings,Old and damaged buildings have to be given some support while repairs are carried out or future demolition contemplated.
不透气
发表于 2025-3-24 17:44:17
Gantries,Another structure closely related to the repair of buildings is the gantry. Many gantries seen in present times are constructed mainly of metal components but it is still necessary for the carpenter to erect such structures solely of timber.
addict
发表于 2025-3-24 19:18:53
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表示向前
发表于 2025-3-25 02:46:06
Centres to Arches,Figure 7.1 shows the elevation of a centre to an arch of a fairly large span. In a case such as this the timbers used for its construction must be of sound quality to avoid splitting under the heavy loads that they are subjected to. The joints between the timbers must also be capable of withstanding the forces they receive.