The bench test results indicated that the metering quality of the dibbler was increased significantly after improvement.

台架试验结，穴播器经改进后对棉种的播种精度有了较大提高。

In this paper, we utilize current equipments such as dynameter and specific fuel consumption detector, and design a set of engine test bench platform based on P89C668.

根据发机台架试验测试平台的基本要求,充分利用了测功机、油耗有设备,开发了基于P89C668的发机台架试验测试平台,实现了显示、打印、控制和通讯功能。