System test bus in the system set up for each testhole.
系统测试采用在系统的每个总线上设置测试孔。
2
By looking at the layers of snow in their testhole, an experienced extreme skier can tell if there's likely to be an avalanche.
有经验的极速滑雪者看看测试洞里头一层层的积雪就知道会不会有雪崩。
3
Put the material in a known testhole on the aperture, and then through a small aperture will load imposed on the fabric, for reads deflection scale pointer value.