(1) The utility model provides a low-temperature stop valve, wherein a guide sleeve is added at the valve disc, and is fixed by bolts and elastic pads, so as to position and guide the seal of the valve; ;The police continued their search around. 200 meters south of the house was an abandoned pumping station. After careful investigation of the wall to the west of the pumping station, the investigators made another major discovery: some dripping and scratching blood. The blood was covered with loess, but traces could still be seen. Following the blood, the investigators carried out a blanket investigation to the south and found a hidden cave 100 meters away from the pumping station. The terrain was relatively partial and it was difficult to find. When the investigators approached the entrance of the cave, dripping blood appeared on the rock wall under the entrance of the cave. Intuition told the investigators that the cave would uncover the mystery of the disappearance of the couple. They carefully entered the cave to explore, From the outside to the inside, the space in the cave gradually widened. There was a large amount of corn straw on the ground. The corn straw was piled thickest in the northwest corner. Investigators moved the straw upward and found a relatively small foot. After another move, they found two other relatively large feet. Preliminary analysis showed that one man, one woman and two bodies were inside. After identification, the two bodies in the cave were newly married couple Sun Gang and Li Hong."Then it was the old method of tracing armour-piercing firebombs that repelled the attacks of the big wasps twice. There was another very special sound from the position. At first we thought there was another big wasp coming, But after looking at it for half a day, I didn't find anything. After a little while, It is also the kind of special sound that is getting closer and closer. Only then did I recognize that it was not the "buzzing" sound of the big wasp, But a sound of "knowing, knowing, knowing, knowing, knowing, Taken out with 'creaking', It's like a lot of people grinding their teeth together, Then a piece of black came running in the direction of the position. This time the direction is straight ahead, At first those things were far away from us and we could not see them clearly with our naked eyes. It was an instructor with a telescope who looked through the telescope and saw that the thing was a lot of mice. And they are all very big, After the news spread throughout the position, I have all my comrades, All ready for battle, Knowing that this is like one of those big wasps, It is certainly not a good fault, Just thinking of starting to fight the newcomers when it comes closer, I didn't think they were about 100 meters away from the position. It stopped suddenly, At the beginning of digging holes collectively, I felt that they were digging holes faster than running on the flat ground. One by one, they almost disappeared from the ground in an instant. Soon, a large area of dark mice disappeared. Looking through binoculars, on the ground where they disappeared, there were many holes the thickness of sea bowls, which were almost denser than craters.此番彭城平叛，项元帅居功至伟，堪为大任。一柄锈迹斑驳的铁剑，一朵溷落蒙尘的兰花和一只翱翔天际的孤鹰，是铁剑、兰花、鹰三位人物个性的写照。铁剑因何而锈？只因铁剑主人心已死！兰花因何溷落？只因兰花已不在幽谷！只有孤鹰还在翱翔，攫取猎物陈启说道：《寻秦记》的结尾，还将会有一个出乎大家意料、惊呆所有人的情节。赵耘斥责这些人：明明是文官不知兵事，偏还喜欢指手画脚。
