Additional sampling accessories are in development.
额外的取样附件正在开发中。
2
The general research on the theory and technology of sampling phase lock in the paper will make a basement for the development of new product.
本论文对取样锁相理论及技术的全面研究，为新产品开发做了一定的预研工作。
3
A cluster sampling technique was used to measure physique development of 871 children aged 4-6 years in Xingan county, Guangxi Zhuang Autonomous Region.