material sample是什么意思 material sample怎么读
material sample的用法和样例
- Astronauts will be launched at a time should already be installed on the exposed solid lubricant material samples removed, back to the ground.
航天员将要把一种在发射时就已经被安装在舱外的固体润滑剂材料样品取下，带回地面。 - The Si Mo furnace used for sintering laboratory sample material and performance test is a kind of high inertial control object.
用于实验室材料样品烧制及性能测试的硅钼炉，是一类大惯性控制对象。
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