| 1. | Background mass spectrum
本底质谱图 |
| 2. | In this thesis , a study on the sea bottom classification by using acoustical method is made
本文针对声学方法海底底质分类问题进行了研究。 |
| 3. | The community structure of macro - invertebrates became simple with the sediment pollution getting heavier
随着底质污染的加重，群落结构趋于简化。 |
| 4. | Sea bottom classification has a great perspective on civil engineering and on military engineering
海底底质分类研究在军用和民用上有着非常广阔的应用前景。 |
| 5. | According to our company s bottom quality situation of sea area , the depth of wooden stake into the bottom should be 3m - 4m
8m 。根据我公司海区底质情况，打入深度为3m 4m 。 |
| 6. | Two kinds of methods were used : acoustic impedance inversion ( all ) method and statistical characters extraction ( sce ) of sound echo method
主要研究了反演底质声学参数和统计特征量两种方法。 |
| 7. | In all method , the precision and stability of inverse results have been improved through mending the impulse response technique
在反演底质声学参数方法中，通过改进冲击响应提取方法，提高了反演精度和稳定性。 |
| 8. | Then the content and structure of seabed sediment table data is analyzed and the data model of seabed sediment thematic digital map is confirmed
分析了海洋底质表格数据的存储内容与结构，确定了海洋底质专题数字图的数据模型。 |
| 9. | In order to make the pile driving easy , the smooth silt bottom or smooth mud bottom is the best , but the ooze bottom is certain
以平坦的泥底和泥沙底最好，软泥底也可以，这种底质打桩容易，但硬质底也可以，不能打桩可以下砣石坐桩。 |
| 10. | This is due to genetic deficiency of the adrenocortical enzyme which normally converts that substrate to a nonandrogenic steroid in the biosynthesis of cortisol
这是由于在皮质醇生物合成中将底质转变为非产生男性特征类固醇的肾上腺皮质酶遗传缺陷所致。 |
