Tunnel hole-through is the time, during the construction of a tunnel built from both ends, when the ends meet, and the accuracy of the survey work becomes evident. Many tunnels report breakthroughs with an error of only a few inches — indeed, it is hard to think of one much worse than this.Fact|date=March 2008
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hole — [hōl] n. [ME < OE hol, orig. neut. of adj. holh, hollow, akin to Ger hohl < IE base * kaul , *kul , hollow, hollow stalk > L caulis, Gr kaulos, stalk] 1. a hollow or hollowed out place; cavity; specif., a) an excavation or pit ☆ b) a… … English World dictionary
through — [ θru ] function word *** Through can be used in the following ways: as a preposition (followed by a noun): They were riding through a forest. as an adverb (without a following noun): There s a hole in the roof where the rain comes through. as an … Usage of the words and phrases in modern English
tunnel — [n] covered passageway adit, burrow, channel, crawl space, crawlway, crosscut, drift, hole, hole in the wall*, mine, passage, pit, shaft, subway, tube, underpass; concepts 509,513 tunnel [v] dig a passage through burrow, excavate, mine, penetrate … New thesaurus
Through the Looking Glass (Angel) — Through the Looking Glass Angel episode Episode no. Season 2 Episode 21 Directed by Tim Minear Written … Wikipedia
Hole-In-The-Wall Falls — is a 100 foot waterfall on Warren Creek in Starvation Creek State Park, Hood River County, Oregon, United States. Its main drop is 60 feet. It was created in 1938 when Warren Creek was diverted through a tunnel (hence its name) to prevent… … Wikipedia
Tunnel — This article is about underground passages. For other uses, see Tunnel (disambiguation). Underground tunnel for heatpipes between Rigshospitalet and Amagerværket in Denmark … Wikipedia
Tunnel diode — A tunnel diode or Esaki diode is a type of semiconductor diode which is capable of very fast operation, well into the microwave frequency region, by using quantum mechanical effects. It was invented in 1958 by Leo Esaki, who in 1973 received the… … Wikipedia
through — ♦ (The preposition is pronounced [[t]θruː[/t]]. In other cases, through is pronounced [[t]θru͟ː[/t]]) 1) PREP To move through something such as a hole, opening, or pipe means to move directly from one side or end of it to the other. The theatre… … English dictionary
hole — I (New American Roget s College Thesaurus) n. opening, aperture, gap, cavity; excavation, hollow; slot, puncture; dungeon; cave; space. See concavity, abode, interval. II (Roget s IV) n. 1. [A perforation] Syn. notch, puncture, slot, eyelet,… … English dictionary for students
Hole-in-the-Rock-Trail — Der Hole in the Rock Trail ist eine rund 320 Kilometer lange historische Überlandverbindung im Süden Utahs. Inhaltsverzeichnis 1 Geschichte 2 Hole in the Rock Road 3 Referenzen 4 Weblinks … Deutsch Wikipedia
