Following this one hour period, the system pressure shall be reduced to the MAWP of the system and are all welds and joints. 一小時(shí)后，將系統壓力降至系統的最大許用工作壓力，而且這兩個(gè)步驟的操作要緊密銜接。
Diamonds are formed deep within the earth where heat and pressure create the necessary condition for carbon atoms to bond tightly. 鉆石在地球的內部深處形成，那里高溫和壓力為碳原子的緊密結合創(chuàng )造了必要的條件。
The simple bobbin creel compression device makes bobbin forming pressure is equably. 簡(jiǎn)單的筒子架加壓裝置，使筒子成形壓力均勻。
