Following this one hour period, the system pressure shall be reduced to the MAWP of the system and are all welds and joints. 一小时后，将系统压力降至系统的最大许用工作压力，而且这两个步骤的操作要紧密衔接。
Diamonds are formed deep within the earth where heat and pressure create the necessary condition for carbon atoms to bond tightly. 钻石在地球的内部深处形成，那里高温和压力为碳原子的紧密结合创造了必要的条件。
The simple bobbin creel compression device makes bobbin forming pressure is equably. 简单的筒子架加压装置，使筒子成形压力均匀。
