We have come to look upon the picture tube as a source of entertainment， placing our role in this dynamic medium as the passive viewer.
我们渐渐把显像 管看作是娱乐的来源，让自己成为这个生动的媒介的被动观众。
2
A general dynamic model and differential equations for an unsymmetrical projectile traveling in a flexible, increasing twist rifled bore gun tube are developed.
建立了非对称弹丸在挠性渐速膛线身管内的弹丸一般运动动力学模型和运动微分方程组。
3
For the forced circulation system, to avoid the excessive values of circulation water dynamic, every water cooling tube must be mounted throttle plate in the design.