During tests over several days, the pointer or tracker tracked an IR source and directed a laser beam at that source.
在几天的测试中，指示器或跟踪器跟踪一个红外光源，并引导激光束击中目标。
Functional groups of the oxidizing degraded products of Black Wattle extract have been studied by using chemical classified tests, IR spectrum and conductivity titration methods.
通过“化学分类试验”与红外、电导滴定法等联用，对荆树皮栲胶不同氧化降解程度产物的官能团进行了研究。
The micro structure and macro properties of PES/PA blend in the presence of compatible agent were studied through the tests of mechanical properties, rheologic properties, IR, DSC and SEM.
通过力学性能、流变性能的测试，以及IR、SEM研究了PES／PA 合金在相容剂存在下的微观结构与宏观性能。
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