查询词典 acoustic velocity

Based on indoor measurement of rock acoustic velocity,drillability, rigidity ,uniaxial compressive strength,the relationship between acoustic velocity and fragmentation parameters of rocks and that between the surface acoustic velocity and the underground mine logging acoustic velocity were explored by regression analysis.

在室内测定岩石声波速度、可钻性、硬度、单轴抗压强度试验的基础上，利用回归分析方法，探索声波速度与岩石机械破碎性能参数之间、地面声波速度与井下测井声波速度之间相关关系，建立了利用测井声波速度预测地层岩石机械破碎性能参数的数学模型，介绍了预测剖面及资料验证结果，并将这一方法用于计算PDC钻头可钻性以及中国南方海相碳酸盐岩地层的岩石力学参数。

According to a point of layer acoustic velocity value by displacement pressure sesmic interval velocity and acoustic velocity,it changes with depth obviously.

利用地震层速度和声波速度转换的排替压力只是相对于地层某点的排替压力值，它随深度变化较为明显。

If the average acoustic velocity of the rock is known, then it is possible to calculate the depth D to the interface.

如果岩石的平均声波速度为已知，那么就可以计算出界面的埋深。

This paper emphasized on the investigation and comparison of two different methods of acoustic velocity thermometry in gas medium,as well as an analysis of their advantages and disadvantages respectively.

本文着重对气体介质中声速测温的两类测量方法进行了研究和比较，分析了其各自的优势与不足。

It is an advanced technology. In all these methods,acoustic velocity thermometry based on the acoustic travel time is a better one with a wider use.

而在声学测温的各种方法中，基于声波传播时间的声速测温方法又是一种比较好的、应用更广泛的方法。

In view of undeterminable parameters andinadaptability to both gas and liquid in existing acoustic velocity models,a new sound velocity model based on PREOS has been established by analysing relationship between pressure,speed of sound and temperature.

针对目前声速模型存在参数难以确定，不能同时适用于气液两种相态等问题，通过分析压力、声速及温度三者的关系，基于PR状态方程开发了声速的新计算模型。

Indoor model test for hydraulic characteristics of common floating vegetation channels in ecological restoration was carried out. Healthy Pistia stratioes linn was planted in the rectangle model river-course in different shapes. The velocity of flow in different situation was measured by three-dimensional acoustic Doppler velocimeter. The change of the rule of velocity was analyzed.

通过在矩形水槽中按不同方式种植个体较小、生长旺盛的大吀进行室内模型试验研究，利用三维超声波多普勒测速仪（acoustic Doppler velocimeter， ADV）分别测量按不同形状种植漂浮植被的矩形水槽中水流的瞬时流场，分析了植被附近区域水流在种植植被前后沿垂线方向的流速分布规律。

It has an electric field with the same order as that of the SKAW on the Alfvén velocity branch, but its magnetic field is weaker than that of the latter by a factor of (β/2)1/2=Cs/νA, where Cs and νA are, respectively, the ion-acoustic velocity and the alfvén velocity.

它具有一个与阿尔文分支上SKAW同一量级的扰动电场，但扰动磁场比后者低β1/2倍。

In the second part presented in Chapter 4, the nonlinear kinetic Alfvén wave on the ion acoustic branch was studied, and a new type of the SKAWs on the ion-acoustic velocity branch is discovered in a low-β plasma.

在第二部分，研究了离子声分支上的非线性动力学阿尔文波并发现了在低β等离子体中的一类新型的SKAW。

Concrete components have flaws, such as loose, hole, slit band and so on. These flaws not only lead to the change of acoustic velocity, but also have strong absorption and attenuation action to the acoustic wave. It is an effective method to detect engineering quality of concrete components by using acoustic velocity CT and attenuation CT combined detection technology.

混凝土构件中存在的诸如松散、空洞、缝隙夹层等缺陷，不仅造成声波速度的变化，而且对声波具有较强的吸收衰减作用，利用声波速度CT和衰减CT联合检测技术是检测混凝土构件工程质量的有效方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。