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- ball type phototube 球形光电管
- Two independent check valves with intermediate relief valve. Supplied with shutoff valves and ball type test cocks. 两个独立的止回阀配置中间安全阀。配置关闭阀和球型测试旋塞。
- The assembly shall include two resilient shutoff valves and four ball type test cocks and a hydraulically balanced bypass line. 这种总成应该包括两个弹性阀座关闭阀和四个球型测试旋塞，以及一个液压平衡旁路管线。
- A gate or ball type valve can be used or the isolation valve can be installed further upstream. 可以采用闸阀或球阀，或者可以将隔离阀安装在更上游的地方。
- Some existent researches mostly focus on pulverizer, not on the ball type pulverizer system. 已有的一些研究重点多集中在钢球磨，对制粉系统的研究不够。
- The assembly shall include two resilient seated shutoff valves &four ball type test cocks. 这种总成应该包括两个弹性阀座关闭阀和四个球型测试旋塞。
- paralleled plate electrode type phototube 平行平扳电极式光电管
- The ball type paraffin removal unit has low reliability in moving; while the tooth type unit has the disadvantages of teeth being apt to break and causing damage of tubing inwall. 球型清蜡器的主要缺点是运动的可靠性差，一旦钢球丧失锁紧功能，将失去“步进足”的作用；而齿型清蜡器的步进齿易破损及齿尖易刺伤油管内壁。
- The working principle, design features and advantages and disadvantages of ball type and tooth type steppiing paraffin removal units are introduced. 介绍了球1型、球2型、齿2?1型和齿4型步进式清蜡器的工作原理、结构特点及优缺点。
- paralleled plate electrode type phototub 平行板电极式光电管
- In this paper, it is limited to discuss the ball type gover nor only and the block type governor may be analysed in same way. 由于篇幅所限,本文所涉及的仅为飞球式调速器;飞块式调速器的静力特性可依此类推。
- Abstract: The working principle, design features and advantages and disadvantages of ball type and tooth type steppiing paraffin removal units are introduced. 文摘:介绍了球1型、球2型、齿2?1型和齿4型步进式清蜡器的工作原理、结构特点及优缺点。
- Features a modular design concept which facilitates maintenance and assembly access. All sizes are standardly equipped with gate valves and ball type test cocks. 模块化结构的特点在于简化维护,有助于总成的接近。作为标准配置,所有通径都配置闸阀和球型测试旋塞。
- Make at the same time we to double in double out ball type coal pulverizer work principle, operation process, movement characteristic had further cognition with increase. 同时使我们对双进双出球磨煤机工作原理、作过程、行特性有了进一步了认识和提高。
- All sizes are standardly equipped with AWWA epoxy coated, UL/FM listed OSY resilient seated gate valves, CFM (cubic feet per minute) or GPM (gallon per minute) meter and ball type test cocks. 作为标准配置，所有通径美国自来水厂协会（AWWA）认可的环氧树脂涂敷，UL/FM认证外阀杆轭架弹性阀座闸阀，CFM（立方英尺/分钟）或GPM（加仑/分钟）水表和球型测试旋塞。
- The production of ball type ingots started in 1979 in Akita Refinery. Up to the present, several improvements and modifications on the ball ingots casting technology including casting machine have been applied. 秋田精炼厂于 1979年开始生产球形锭到目前为止 ,对包括铸锭机在内的球形锭浇铸技术做了若干改进与更新。
- He singled and went to second on a passed ball. 他击出一垒打，再因对方漏接而跑上二垒。
- In cricket, the ball is delivered overarm. 打板球时，要举臂过肩掷球。
- Children love to ball snow up in their hands. 小孩子们喜欢将雪在手里做成球儿。
- In a printer, the removable type element. 印刷机上可拆卸的打印部件。
