Times of high temperature test for packing was made and the reliable test base have been obtained for down-hole tooltest under high temperature and pressure well.
进行的多次高温封隔器试验为研制高温高压特殊封隔器和油田井下工具的检测提供了可靠的依据。
2
The researchers used a psychological assessment tool to test the validity of the study.
研究人员使用心理评估工具来测试研究的有效性。
3
When younger kids learn computer science, they learn that it's not just a confusing, endless string of letters and numbers—but a tool to build apps, or create artwork or test hypotheses.