A low temperature stop valve, Unlike Example 1, Comprises a valve body 1 and a valve cover 2, A valve stem 3 is arrange in that valve body 1, One end of the valve stem 3 is provided with a valve disc 4, The other end of the valve stem 3 is provided with an adjusting handwheel 5, A low portion of that disc 4 is provided with a guide sleeve 6, The guide sleeve 6 is fixed by means of a connecting piece and a spring pad 8, Between that disc 4 and the guide sleeve 6 is provide a valve seat 7, Between that valve stem 3 and the valve cov 2 there is provided a packing assembly 9, An O-ring 10 is further dispose at that upper portion of the packing assembly 9, The upper part of the O-ring 10 is provided with a packing gland 11, the valve body 1 is provided with an arc-shaped end face 12, the arc-shaped end face 12 forms a line seal between the valve body 1 and the valve seat 7, the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41, the packing assembly 9 comprises a flexible graphite packing layer, the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity, and the two O-rings 10 are respectively arranged on the inner side and the outer side of the packing gland 11.
A command in command mode refers to an instruction that performs certain things.
2018-03-02 13:23:50
BIM technology can be used to deal with these hidden dangers in time, thus reducing unnecessary losses, and can quickly respond to and deal with emergencies, and quickly and accurately grasp the operation of buildings. During disaster prevention and rescue in the operation and maintenance phase, real-time data access can be carried out by retrieving BIM database, and emergency response can be assisted in the virtual environment of BIM information model to accurately determine the location of danger. Detailed information can be provided before emergency personnel arrive.
众人吓了一跳，尤其是小葱，慌忙对板栗使个眼色，微微侧头，向后面那对主仆瞟了一眼，一边道：三叔这是什么话？宁静郡主家世容貌品性，无一不是上上的，三叔又没定过亲，怎么不行了？板栗也急忙道：就是。
Now the heated color has become crisp inside, and the carbonized part will break and have a strong taste when touched slightly.
一夜红烛，她马上就反应过来，没想到东来哥精力这样旺盛。
Public void add (Observer observer);
The equipment of China's weightlifting national team is Dowell, but there are also many athletes who buy NIKE weightlifting shoes worth several thousand yuan at their own expense. Only the top athletes can realize the difference.
当即脸sèyīn沉了许多，脸上没有笑容，沉声道：没有那么多问题，尽快离开，不然我家小姐发怒了，闹得不好看。
In the interview program "Transparent Man", Jiang Sida interviewed a well-known divorce lawyer. She has handled at least 400 divorce cases and witnessed the marriage change from a 7-year itch to a 3-year itch.
对此，陈平一直很好奇。
受制于人就是如此……韩信焦急不已，在空地上踱着步子，来来回回走个不停……蒯彻也恐迟则生变，催促道：齐王，还请你快些做出决定……韩信无奈叹息一声。
继公益微电影《一块钱》温情刷屏后，腾讯公益联手「为村」平台又发布了新的作品：《盼归》，同样以贫困乡村的留守儿童为主角，但这一次的主人公赵刚强，却在跟外出务工的父亲通话时，编造了一个又一个的谎言，闹出了一个接一个的误会。
The life of the brand should gradually develop and grow with the passage of time. The extension of the brand is also developing and changing. This change is not only reflected in the extension of types, but also in the changes in the life cycle of single products themselves.
如此空等下去，怕是会什么也得不到
This was a super big case in those days, and the entire Guangdong public security department was mobilized. At this time, they also received an important clue: some Shanwei people who contracted anti-smuggling ships, posing as border guards and customs soldiers, robbed a cargo ship.
爸，我们等会儿出去买点东西。
噩梦如暴风雨般汹涌而来，四口之家遭遇着最为可怕的诅咒……
Added reserved words (such as protected, static, and interface)
