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drift buoy | 漂流浮标
| A DATA collection BUOY which is not moored to the sea bottom, but drifting freely in response to currents, tides, and wind. | 一种用于数据采集的浮标，它并不系泊于海底，随着海流、潮汐、风自由漂流。 |
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drift current | 偏流，吹送流
| See CURRENT. | 主要由风驱动的大范围、流速缓慢的洋流。 |
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drift ice foot | 雪坡，冰脚
| See RAMP. | 参见ramp（冰脚）。 |
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drifting logship | 测流船
| A LOGSHIP employed for the measurement of TIDAL STREAMS and CURRENTS. It is allowed to drift freely while its POSITIONS are fixed, during th... more | 用来测量潮流和洋流的船舶。在观测期间测流船位置固定后，可自由漂移。测流船可通过辅助船舶或者岸... more |
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drift lead | 测走锚铅锤
，漂测锤 | See LEAD. | 投放到海底的测深锤，用来指示船舶的移动。 |
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drift sounding | 漂移测深
| See SOUNDING. | 用于探测浅水区中最浅深度的方法，实施方式为使用小艇在预先测过的水深线间沿一系列小间隔线缓缓偏... more |
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drift station | 漂流（观测）站
| A scientific station established on the ICE of the Arctic Ocean. A term sometimes used in shoran operations to designate the ground station ... more | 建立在北冰洋浮冰之上的科学观测站。
某些情况下肖兰（近程无线电导航）系统操作中使用的术语，为地... more |
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driver rod | 沉锤取样管，传动钻杆 | A device employed together with a SINKER to obtain BOTTOM SAMPLES when WIRE SOUNDING. It consists, essentially, of a galvanized iron tube th... more | 当采用绳索测深时同测深锤一同使用的设备，用于获取海底底质样本。本质上它由镀锌铁管组成，底部包... more |
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driver tube | 沉锤取样管 | See DRIVER ROD. | 参见driver rod（沉锤取样管）。 |
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drizzle | 毛毛雨
| Fairly uniform PRECIPITATION composed exclusively of fine drops of water (diameter less than 0.5 mm), very close to one another. | 分布十分均匀的降雨，水滴直径小于0.5毫米且大小非常接近。 |
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drogue | 测流浮标
| A current measuring assembly consisting of a weighted parachute and an attached surface buoy. Also called parachute drogue. | 一种测流装置，它由一个负重的降落伞状物和一个附属的水面浮标组成。也称为parachute drogue（伞降浮标）... more |
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drum | 滚筒
| A rotating cylinder on which is set a registering card or paper for recording purposes. Cylinder around which CABLE is wound in a winch. | 放置登记卡或者记录纸的旋转圆柱。
绞车中缠绕电缆用的圆柱体。 |
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drum plotter | 滚筒绘图机
| A plotter which uses a rotating drum or cylinder to move the drawing base in the direction of one coordinate axis while the plotting head on... more | 一种绘图机，它使用旋转滚筒或者圆柱实现在一坐标轴方向移动绘图纸，同时绘图头只沿另一坐标轴方向... more |
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dry bulb thermometer | 干球水银温度计
| See THERMOMETER. | 参见thermometer（温度计）。 |
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dry (or dry card) compass | NULL | See COMPASS. | NULL |
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dry dock | 干船坞
| See DOCK. | 一种人工建筑物，具有一个门或者修船箱。船舶通过坞门进入干船坞后可以漂浮起来，然后将水排出船舶... more |
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drying heights | 干出高度
| HEIGHTS above SOUNDING DATUM, of any areas (BANKS, FORESHORES, ROCKS, etc.) which dry at LOW WATER. | 任何区域（海岸、海滩、礁石等）在水深基准面以上的高度，这些区域在低潮时会露出水面。 |
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drying line | 干出线
| The line marking the transit from water to land; usually the low-water line. | 标识水域和陆地过渡的线；通常指低潮线。 |
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drying reef | 干出礁
| A reef or part thereof which dries at low water. | 全部或者部分在低潮时露出的礁石。 |
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dry proof | 干打样
| An impression of a CHART pulled from the engraved PLATE onto a dry sheet of paper. This impression is fainter than a damp-pulled copy and un... more | 用雕刻凹版在一张干图纸上打印出海图样图。这样打出的样图比湿打样要模糊一些，不适合平常使用，但... more |