Time dependent gain characteristics and gain spatial distribution of X-ray pre-ionized pulse avalanche discharge XeC1 excimer laser have been measured.
本文测量了X光预电离脉冲雪崩放电准分子激光增益的时间和空间特性。
The experimental researches show that the time-lapse and spatial carrier transformation DSPI is an effective experimental method for carrying out researches on the concrete fracture characteristics.
实验研究表明，时间相移及空间载波变换数字电子散斑干涉法是进行混凝土损伤断裂特性研究的一种有效实验方法。
The agro-forestry compound management has the characteristics of synthesis, complexity, systematization, time & spatial and intensive features.
论述了农林复合经营具有综合性、复合性、系统性、时空性、集约性等特点。
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