plasma 发表于 2025-3-26 22:38:18

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Reverie 发表于 2025-3-27 04:14:30

Book 1992trenchless technology is a futuristic concept. Ruth Krauss in a children‘s book of definitions wrote, "A Hole .. .Is to Dig." But this statement is not necessarily true. Today, a hole could be to bore.

独行者 发表于 2025-3-27 07:24:33

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催眠药 发表于 2025-3-27 11:18:53

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echnic 发表于 2025-3-27 14:28:19

Die aktienrechtliche Legalitätspflichtstems were available, most users made little use of these systems. These first-generation guidance systems did not significantly help the user to maintain grade and could not be used to help control plan direction.

frugal 发表于 2025-3-27 18:40:07

Wissen als gesellschaftlicher Faktorl project, only a purchase order may be issued, whereas larger projects typically involve a contract that may detail the time to complete the work, specifications for the project, costs and legal ramifications.

disciplined 发表于 2025-3-27 23:26:13

Steerable Horizontal Boring,stems were available, most users made little use of these systems. These first-generation guidance systems did not significantly help the user to maintain grade and could not be used to help control plan direction.

Mutter 发表于 2025-3-28 02:19:03

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white-matter 发表于 2025-3-28 09:06:02

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Magnificent 发表于 2025-3-28 13:19:10

Background, has not said” (Braude 1965). History provides a data bank of experiences, and if we take heed, we should be spared the futile but often popular pastime of reinventing the wheel. History also reveals the technological and economic choices that have shaped the products we have today and helps to guid
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查看完整版本: Titlebook: An Introduction to Trenchless Technology; Steven R. Kramer,William J. McDonald,James C. Thom Book 1992 Van Nostrand Reinhold 1992 Teer.Tun