This satisfies the requirement of protecting seal spring and also never puts damage to valve on steam turbine.
这样即满足了保护密封圈的要求又不对汽轮机阀体有伤害。
Also, if you go away from your house for awhile in the spring to fall, then you should fill up the tank before you leave. It will slowly evaporate through the loop seal.
此外，如果我们在春季至秋季这一段时期要离开家一段时间，我们应当在离家前将我们太阳能热水器的水箱注满。
The metal diaphragms act as the seal at the top of the valve. The primary improvement in this generation of valves is the elimination of the spring used to open the valve.
金属横膈膜在阀门的顶部作为密封。这一代阀门的主要的改进是取消了用于开启阀门的弹簧。
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