Using a Hand | 台灣精品獎-歷屆得獎名單
![Using a Hand](https://i.imgur.com/DERULla.jpg)
Firstyoutakeabearingonthewatertower,thenplotthatbearingonyourchart,withtheplottedlinerunningthroughthechartedlocationofthetower.Next ...
![Using a Hand](https://i.imgur.com/DERULla.jpg)
Perhaps you are running down the coast and you know there is a shallow area somewhere in front of you that extends out from the shoreline a mile according to the chart. How can you tell if you are far enough offshore to miss this hazard?
The traditional method is called bow and beam bearing. It is based on the geometric fact that two sides of a 45° right triangle are equal. When some feature at or near the shoreline is 45° off the bow, you begin keeping track of your distance through the water, either by log or by time and speed. Note that the bearing is relative, so the bearing compass reading will be 45° less or more than the steering compass reading, depending on whether the shoreside feature is to port or starboard. When the shoreside feature is abeam, bearing 90° relative to your heading, the distance you have run is equal to the distance off.
With a hand-bearing...
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![](https://i.imgur.com/DERULla.jpg)
104 年度台灣精品獎獲獎產品 植牙臨床導引系統
由「醫百科技股份有限公司」生產的植牙臨床導引系統獲得104年度台灣精品獎,以下為此獎項詳細資料整理:得獎產品:植牙臨床...