| 单词 | drill-plough |
| 释义 | drill1 /dril/transitive verb
ORIGIN: Prob borrowed from Du drillen to bore; dril, drille a borer; cf thrill drillˈer noun drillˈ-barrow noun A grain-drill driven by hand drill bit noun A removable cutting and boring head in a drill drillˈ-harrow noun A harrow for working between drills drillˈhole noun A hole bored in the ground eg for rock samples drillˈ-husbandry noun The method of sowing seed in drills or rows drilling machine, drilling lathe or drillˈ-press noun A machine for boring with a drill or drills drilling mud noun A mixture of clays, water, density-increasing agents and sometimes thixotropic agents pumped down through the drilling pipe and used to cool, lubricate and flush debris from the drilling assembly, providing the hydrostatic pressure to contain the oil and gas when this is reached drilling pipe noun The tube that connects the drilling platform to the drill bit and imparts rotary motion to the latter drilling platform noun A floating or fixed offshore structure supporting a drilling rig drilling rig or drill rig noun The complete apparatus and structure required for drilling an oil well drillˈ-master noun A person who teaches drill, or who trains in anything, esp in a mechanical manner drillˈ-plough noun A plough for sowing grain in drills drill-press see drilling machine above. drill rig see drilling rig above. drillˈ-sergeant noun A sergeant who drills soldiers drillˈship noun A free-floating ship-shaped drilling platform drill string noun A pipe made of metal tubes that forms the bore of a drillhole, esp for oil or gas drill down (computing) To navigate from a higher to a lower level of a hierarchically structured database |
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