例句與造句

1. When the system pressure drops to the return pressure , the security valve will be closed and stop discharging , in the way of which the pipelines and equipments of the steam system will be protected
   當(dāng)系統(tǒng)運(yùn)行壓力降低至安全閥的回座壓力時(shí)，主蒸汽安全閥自行關(guān)閉，停止排放，從而對(duì)主蒸汽系統(tǒng)的管道和設(shè)備起安全保護(hù)作用。
2. When the system pressure goes up to the value that will open the security valve , the main steam security valve will be released all by itself , discharge the excessive steam in the system and lower down the system pressure
   當(dāng)系統(tǒng)運(yùn)行壓力上升至安全閥的開啟壓力時(shí)，主蒸汽安全閥自行打開，排放主蒸汽系統(tǒng)中的蒸汽，使系統(tǒng)壓力降低。
3. It's difficult to find security valve in a sentence. 用security valve造句挺難的