A laboratory assistant helps to maintain scientific equipment, keep a check on the supplies in the store, and prepare the chemicals for experiments.
实验室助理就是要维护科研设备，经常检查库房的供应以及为化学实验做准备工作。
It seems to be very important to build the defect model and the invalidation model of material, as it can help to realize its NDT and keep a check on its quality and using state.
为了实现对它们的无损检测并监测它们的质量与使用状态，建立材料的缺陷与失效模型便显得尤为重要。
It seems to be very important to build the defect model and the invalidation model of material, as it can help to realize its NDT and keep a check on its quality and using state.
为了实现对它们的无损检测并监测它们的质量与使用状态，建立材料的缺陷与失效模型便显得尤为重要。
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