1) back-to-back testing
背靠背试验，反馈试验，对拖试验
2) back to back test
背靠背试验
3) Hopkinson test
霍普金森试验，互馈试验，背靠背试验
4) opposition test
互馈法试验，背对背试验，对组试验
5) electrical back-to-back test
背靠背电气试验
6) root bend test
背弯试验
1.
Analysis of the reasons for presence of cracks on the test samples taken from the witness welded products during the root bend test as well as measures to be adopted;
焊接产品见证件背弯试验件裂纹原因分析及措施
补充资料：背靠背
①背部靠着背部：他俩～地坐着。②指不当着有关人的面（批评、揭发检举等）：为了避免矛盾激化，先～给他提些意见。‖也说背对背。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条