本文还做了玻璃应力松弛试验，结果表明，采用RD_2 - 3型改进应力松弛试验机是可靠的。
In addition, stress relaxation of glass is studied. Relaxation curves show that the modified type RD_2-3 stress relaxation testing device is reliable.
本文详细论述了应力松弛试验机的国内外概况，在此基础上阐述了SC- 200应力松弛试验机的结构及性能特点。
The general situation about stress relaxation testing machine both at home and aboard, the structure and performance of SC-200 stress relaxation testing machine are expounded.
本文详细论述了应力松弛试验机的国内外概况，在此基础上阐述了SC- 200应力松弛试验机的结构及性能特点。
The general situation about stress relaxation testing machine both at home and aboard, the structure and performance of SC-200 stress relaxation testing machine are expounded.
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