The origin of the word "tube

Tubes, bamboo tubes. --San Cang. In Taicang County, Jiangsu Province, there used to be a big granary for the royal family, which was used to hoard rice all year round for the transfer of grain from the south to the north. Grain more natural bird infestation frequently, every year because of the bird and the loss of a lot of food. Management of the granary officials in order to reward the bird protection food, will be made of bamboo chips to record the number of birds, with which to issue honorariums, which is the "protection of grain plate" Taicang. This chip engraved with a variety of symbols and numbers, both ornamental, but also games, can also be used to cash prizes vouchers. The gameplay, symbols and terminology of these cards are all related to bird hunting. For example, the "tube" pattern is the cross-section of the gunpowder gun, "tube" that is, the gun barrel, a few tubes means a few gunpowder guns.