James Puckle patented a revolving chamber gun in 1718.
詹姆斯·帕克尔在1718年为旋转式膛枪申请了专利。
Gravel multi-function impact test enginery main standard components are: shot gun components, collision chamber and specimens grippers.
砂砾多功能冲击试验机主要的标准组件有：射枪组件、碰撞室和试件夹持器。
Spray gun, paper tape, putty, sewing and work clothes and other items should not be stored in the open environment, these items should be placed in the storage chamber and the airtight ventilation.
喷枪、纸胶带、腻子、车衣以及作业服等物品不该当存放在敞开的环境中，这些物品都应当放在密闭和通风的贮存室内。
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