Traditional Culture Encyclopedia - Traditional customs - The method of measuring water depth with sounding rod and sounding hammer is applicable to ().
The method of measuring water depth with sounding rod and sounding hammer is applicable to ().
Answer: b
Sounding hammer originated from sounding rod (commonly known as flower pole), the original water depth measuring tool. Insert the sounding rod vertically into the water, touch the bottom of the water, and observe the depth mark on the pole to tell the water depth of the measuring point. Sounding rod and sounding hammer are only suitable for shallow water with low velocity.
- Related articles
- What is the hottest and best-looking costume TV series?
- Five working schedules of the engineering department
- What words can describe "the beauty of classical furniture"
- My toy (title) is no less than 25 words and no more than 30 words.
- Who is the main character of Blessing? What parts of the novel reflect her struggle and resistance?
- Use a mask to make sachets without sewing.
- Features of Chaoshan Snacks 100 words
- Personal experience in cooking a complete list of food ingredients
- What fish is good to fish in September? What fish marks are there on the water the day after nesting?
- How to understand the social function of science and technology