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PCB造句
1. Evaluate PCB stack-up, components layout and optimize project design. 2. PCB or Quick Connecting Terminal, Available for Automotive Applications. 3. PCB board design, system board, the board copy. 4. Every process from a process control block (PCB) said. 5. PCB Ground will not be connected to Chasis Ground. 6. Specialize manufactured double sided and multilayer PCB from 1986. 7. Alignment of the drill and the center of PCB standard hole in PCB location hole drilling machine is the key, which determines processing precision of the whole system. 8. Chasis Ground is the border around the SMC PCB top and bottom. 9. It can be used to metalize holes of PCB and plate on plastics. 10. PCB (polychlorinated biphenyl):Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound. 11. Over the years, PCB and dioxin levels in the livers of the Hudson's tomcod rose to become "among the highest known in nature," Wirgin and his colleagues note online Feb. 17 in Science. 12. This paper classifies the testing technologies of PCB, introduces the on-line testing and on-line tester. 13. When handling the PCB or PCBA, is the operator wearing gloves if PCB solder side is touched ? 14. The PCB quality affects the capability of products directly. At present PCB quality test works are mostly completed by manual eyeballing. 15. The PCB assembly industry carries the responsibility of manufacturing a tremendously diverse array of products. 16. Current collecting, series connection and clamping can be integrated by adopting printed-circuit board (PCB) as monopolar plate in passive DMFC. 17. During operation, keep the PCB and component lead away from pollutions, such as sweat, hand touch, cream, oil etc. 18. The cable and PCB, by which the power divider was made, were both adopted in the feeding circuit net work. 19. In PCB design, if all units grounded in one point, the self-oscillation by circuit feedback along the earth wire or the power supply wire can be avoided. 20. In the production process of PCB, there are many defects such as surface smudginess, solder mask unevenness, text excursion, pad damage, track damage etc. 21. I didn't lay out the computer PCB, but I did lay out a PCB for a floppy disk controller that I had designed. 22. Provides an optimum temperature for soldering PCB throughout reflowing operation. 23. The utility model provides an elevator PCB control device with simple wiring and full functions of fault code detection and recording, etc. 24. To insure the quality of image , we take the signal integrity analyze into PCB design consideration. 25. Relay. Coil voltage 6 VDC. Contact arrangement 2C . Terminal PCB. Enclosure top flange. Option neon lamp. 26. Application Suitable for Bonding Used in Die Cavity Board and Multilayer Rigid - flex PCB. 27. Used in the masking operation during wave solder process on PCB, prevented electroplating liquid immersing and polluting. 28. Used in the masking operation during wave solder process on PCB. 29. Based on the avalanche effect, a kind of kilo-volt nanosecond pulsers has been designed, by using microwave PCB (printed circuit board). 30. High speed switch design consists of many components, the density of PCB and the signal rate is very high. Accordingly the Signal Integrity is very important.