What is a bare tube and what does it mean?

The original meaning of pipe refers to the ancient single wind instrument, and by extension, it refers to the wind instrument in general, and by extension, it is extended to all pipes; Possession, jurisdiction, management, etc.

Glyphic characters. From bamboo, official voice. The word "guan" in Han Li is derived from the "bamboo" or "艹", and the "菅" of grass Kan is the same shape. "Guan" is an ancient single-limb wind instrument, like a flute with six holes, or made of bamboo, Zhaoluo or jade.

Poems, Zhou Song, Youqing": "Both are prepared to play, and the pipes are prepared." "Tube" uses its original meaning. By extension, it refers to wind instruments.

Tang Bai Juyi's "Pipa Xing": "The master dismounts the guest on the boat, and there is no orchestra to drink wine. And by extension, every tube. The barrel of the pen is tube-shaped, so the brush is called "tube".

Poetry, Wind and Quiet Girl": "The quiet woman is a woman, and I am in charge." Lu Deming explained: "Tube, pen tube." "In ancient times, the lock and key were tube-shaped, so it was called "tube". It is also extended to the righteous calendar of control, jurisdiction, and management.

Compounds of tube:

Management, Complex Emergency Tube, Jurisdiction, Kinetic Tube, Although, Boundary, Fistula, Letter Tube, Catheter, Detonator, Esophagus.

Tubes, tubes, tubes, bile tubes, cylinder tubes, wind instruments, tubes, pen tubes, straight tubes, trachea, IVF.

Takeover, tube well, needle, detention, control, pottery tube, transistor, sleeve tube, supervision, management area, regardless of it.

Guarantee, pipeline, pipeline, control, custody, control, blood vessels, black pipes, management, pipe sections, pipelines, military management.

Manage, segment, tube, microvascular, caretaker, trusteeship, nosy, supervisor.

The above content reference: Encyclopedia-Tube.

Summary. Kiss is happy to answer for you: What is the D tube Answer:

Kiss xd, is the fire hydrant pipeline fire hydrant pipeline set up? 1. Pipe network design requirements 1General requirements 1) The design flow rate of the fire water supply pipeline should not be greater than that, and the design flow rate of the pipeline of the automatic water fire extinguishing system should comply with the relevant provisions of the corresponding specifications, but the feed water flow rate of any fire pipe should not be greater than 7m s.

2) Buried pipelines should be made of ductile iron pipes, steel wire mesh skeleton plastic composite pipes and steel pipes with strengthened anti-corrosion, and hot-dip galvanized steel pipes and other metal pipes should be used for indoor and outdoor overhead pipelines. 2.Outdoor fire water supply pipe network 1) When outdoor fire water supply adopts two fire water supply, the ring pipe network should be used, but when one fire water supply is used, the branch pipe network can be used.

2) The diameter of the pipe should be calculated according to the flow, velocity and pressure requirements, but should not be less than DN100. 3) The fire water supply pipeline should be divided into several independent sections by valves, and the number of internal and outdoor fire hydrants in each section should not exceed 5. 3.

Indoor fire water supply network.

What kind of tube is the D tube.

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Kiss Glad to answer for you: What is the D pipe Answer: Kiss xd, is the fire hydrant pipeline fire hydrant pipeline set up?

1. Pipe network design requirements 1General requirements 1) The design flow rate of the fire water supply pipeline should not be greater than that, and the design flow rate of the pipeline of the automatic water fire extinguishing system should comply with the relevant provisions of the corresponding specifications, but the feed water flow rate of any fire pipe should not be greater than 7m s. 2) Buried pipelines should be made of ductile iron pipes, steel wire mesh skeleton plastic composite pipes and steel pipes with strengthened anti-corrosion, and hot-dip galvanized steel pipes and other metal pipes should be used for indoor and outdoor overhead pipelines.

2.Outdoor fire water supply pipe network 1) When outdoor fire water supply adopts two fire water supply, the ring pipe network should be used, but when one fire water supply is used, the branch pipe network can be used. 2) The diameter of the pipe should be calculated according to the flow, velocity and pressure requirements, but should not be less than DN100.

3) The fire water supply pipeline should be divided into several independent sections by valves, and the number of internal and outdoor fire hydrants in each section should not exceed 5. 3.Indoor fire water supply network.

Tube Basic Explanation:1.Tube: Steel. Bamboo. Water. Angry. Generally refers to a barrel-shaped, hollow and slender object. Steel tube; Tube view (narrow knowledge).

2.Playing instrument: Black.

Strings. Shape sound. From bamboo, official voice.

Original meaning: A wind instrument similar to a flute. An ancient Chinese wind instrument, originally made of jade, switched to bamboo, with six holes and a foot long.

The latter refers to wind instruments.

3.An electrical device shaped like a tube: electron. Crystal.

4.For something slender and cylindrical: a brush. Two toothpastes.

5.Surname. 6.Manage; Custodian: Account. Books. Who Warehouse?. She can use ten machines at the same time.

7.Jurisdiction: This province has dozens of counties.

8.Discipline: Child.

9.Serve (work): I propaganda, you style.

10.Question: Idleness. We can't help but do this.

11.Guarantee; Responsible for supplying: Bao. Not good to change. Eat and live.

13.The role is similar to that of "to": he borrows money. I want something.

14.In spite of; No matter who he is, he has to be criticized.

15.Related; Involved: He doesn't want to come, what is my business?