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艾山站在测洪水时,由于水深,船边系艄锚的钢丝缆较短,艄锚不着地,测船就无法利用艄锚分力,往往使测船下流得很远,测一点需时甚长。经该站全体职工的共同努力,想出了办法:把船头的两边各绑直径约一公寸、长二公尺的木捍,伸出船头,名曰挑杆。挑杆的一端绑在船头,另一端系一铃铛,艄锚顶由此铃铛串过,因此,挑杆伸出多长,艄锚就伸展多长(因艄锚钵不用挑杆时只能和船一般长)。如艾山站原不仅可在二公尺水深处艄锚着地的船,船前绑上挑杆,伸出船前一公尺,锚钵即伸长了一公尺,如此
Because of the deep water, the steel wire rope tied by the anchor at the ship’s edge is shorter and the anchor can not hold it. Therefore, the surveyor can not utilize the anchoring force and often makes the measurement vessel run afoul of the ship. Very long. Through the joint efforts of all the staff at this station, came up with a solution: tie the bow on both sides of a diameter of about one inch, two meters long wooden defending, out of bow, the name pick bar. One end of the bar is tied to the bow, and the other end is a bell. The top of the anchor hangs from the bell. Therefore, how long the bar extends and how long the anchor extends? And ships generally long). Such as Ai Shan station not only in the depths of two meters anchored to anchor the ship, the boat tied to pick the bar, one meter out of the boat, anchor bowl that is one meter longer, so