您要查找的是不是：
- four vaccum system 真空喷射系统
- A determining method is intreduced to measure leakage and degassing of rubber seals lohich is applied to high vaccum and super high vaccum system. 介绍了高真空和超高真空系统中使用的橡胶密封圈放气和渗漏的测量方法和结果。
- The vaccum system composition of PET plant in Urumqi Petrochemical Company were introduced,including EG circulation,booster pump and EJ spray. 介绍了乌鲁木齐石化聚酯装置真空系统的组成,包括EG循环,增压泵,EJ喷淋等,影响整个真空系统效果的因素及聚酯装置失真空的处理方法。
- The choice and arrangement of press section,dryers pit,condensed steam system,vaccum system,QCS system and approach system are discussed in particular. 对沅江纸业原1760/250纸机单层布置的配置及纸机在地坑配置、复合压榨使用、通汽方式、流送系统等的改造作了介绍。
- Having been tested and analysed,auxiliary offloading unit of no vaccum system was proved to have different working principle from that of the existent vaccum system. 对轻油泵房无真空系统辅助卸油单元运行进行了实验测试和理论分析。
- Keywords Nitration furnace neigh Drive devices Vaccum system; 氮化炉;传动装置;真空系统;氮化硅;
- A Discussion on Air Leaking Point Detection in Condenser Vaccum System 凝汽器真空系统查找漏空点之探讨
- It is clear to all of us that two plus two is four. 二加二等于四对我们大家都很清楚。
- He wove four plots together into a novel. 他把四条情节编成一部小说。
- We have tea at four o'clock in the afternoon. 我们在下午四点钟喝茶。
- The town boasts four swimming pools. 这座城镇以拥有四个游泳池而自豪。
- Our football team won by four goals to nil. 我们的足球队以四比零取胜。
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
- I was clean broke in less than four days. 不到四天我就一个钱也没有了。
- I'll look out for you at about four. 我4点钟左右找你。
- He showed us four case studies of disturbed girls. 他给我们看了4位精神失常姑娘的病历。
- My house is four miles distance from the sea. 我家离海四英里。
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- The leap year comes around once in four years. 每四年有一个闰年。
- The soldiers counted off from the left by four. 士兵们从左起四个一组大声报数。
