Based on the calculation and finite element analysis of resonator, a new kind of resonant liquid density meter is designed.
在对圆筒谐振子的数学模型计算和有限元分析的基础上，设计了一种新型的谐振式液体密度传感器。
The relation between DD density meter method and natural stacking method for determining filling value of cut stem was discussed .
对DD密度计法和自然堆积法两种测试膨胀梗丝填充值的方法进行了实验分析对比。
The relation between DD density meter method and natural stacking method for determining filling value of cut stem was discussed .
对DD密度计法和自然堆积法两种测试膨胀梗丝填充值的方法进行了实验分析对比。
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