- marking hole
- n.传号孔
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
marking hole
Look at other dictionaries:
Hole punch — A hole punch (known also as a hole puncher, paper puncher, holing pincer, or rarely perforator) is a common office tool that is used to create holes in sheets of paper, often for the purpose of collecting the sheets in a binder or folder. History … Wikipedia
Card marking — is the process of altering playing cards such that the suit, rank or both are only apparent to the person marking the cards (or potentially another conspirator), usually for the purpose of cheating at cards by card sharps. To be effective, the… … Wikipedia
The Black Hole — For other uses, see Black hole (disambiguation). The Black Hole Directed by Gary Nelson Produced by Ron W. Miller … Wikipedia
wheel marking — All disc wheels are marked (generally on the front side of the disc in the stud hole area) with the manufacturer s trademark, the wheel number, rim size, and date of production … Dictionary of automotive terms
In the Hole — A minus score, named after the practice (as in Euchre) of marking a score as minus by drawing a ring around it … The official rules of card games glossary
Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… … Wikipedia
List of Happy Tree Friends characters — This is a list of fictional characters from Happy Tree Friends. There are 22 main characters, and some other supporting characters. To celebrate the 10th anniversary of the series in 2010, the creators of Happy Tree Friends announced that there… … Wikipedia
Countersink — A countersink is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common usage is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the… … Wikipedia
Punch (tool) — For punches used in punch presses, see Punching. A punch is a hard metal rod with a shaped tip at one end and a blunt butt end at the other, which is usually struck by a hammer. Punches are used to drive objects, such as nails, or to form an… … Wikipedia
Counterbore — A counterbore in a metal plate A counterbore can refer to a cylindrical flat bottomed hole, which enlarges another hole, or the tool used to create that feature. A spot face is a very shallow counterbore. A counterbore hole is used when a… … Wikipedia
Nut (hardware) — A nut threaded onto a bolt A nut is a type of hardware fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten a stack of parts together. The two partners are kept together by a combination of their threads… … Wikipedia
