| 单词 | counterbore |
| 例句 | For enlarging a hole for a certain distance the counterbore is employed. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The principal difficulty in the machining of aluminum and aluminum alloys is caused by the clogging of the chips, especially when using such tools as counterbores and milling cutters. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. If taken off at all it must be pulled, for the dowel-pins, key and counterbore are close fits. Steam Turbines A Book of Instruction for the Adjustment and Operation of the Principal Types of this Class of Prime Movers When the cannon is loaded, a small quantity of powder is placed in the counterbore, and the spark between C and E ignites this and discharges the cannon. The Boy Mechanic: Volume 1 700 Things for Boys to Do A counterbore in the arbor hub provides clearance for the hub of the pulley which projects beyond the rim on one side. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. For counterboring small holes or for facing the metal around their ends, the form of counterbore shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z By the use of an additional universal joint and bearing to permit the toolslide to be swung to a 90-degree angle, the teeth of counterbores, etc., can be relieved on the ends. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. |
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