查询词典 speed of sound

For any further increase in velocity higher than the speed of sound, flight noise does not increase significantly.

在高于音速时，速度上进一步的增加并不会显著地增大飞行的噪声。

The frequency, wave lenth, and speed of sound are closely related.

频率，波长和声速三者是密切相关的。

The frequency, wave length and speed of sound are dosely related.

声音的频率、波长、和速度三者紧密相关。

Detonation is propagation of a combustion-driven shock wave at or above the speed of sound.

爆轰是一种以冲击波为特征，以超音速传播的爆炸。

Methods The tibial speed of sound and coxal bone mineral density were measured in all patients of trail and control group.

方法组和对照组的患者均进行胫骨超声速率和髋部骨密度的测定。

The accuracy of this equation to calculate the thermodynamic properties such as pvT, saturated liquid density, isochoric heat capacity, speed of sound, second virial coe...

比较了HFC－32的热力学性质，包括：压力－比容－温度、比定容热容、声速、第二维里系数、饱和液密度等的测量值与本状态方程计算值。

Compare the relative frequency and wavelength of musical notes. Use 330 m/s as the speed of sound and the following frequencies for the musical scale.

如果声音在空气中的传播速度为330m/s，各音阶的频率如下表所示，试求出邻近音符的频率差及每个音符的波长。

What's more, as the vehicle approaches the speed of sound, it produces a frontal shock wave which liquefies the earth ahead, so the wheels end up carving through ground, rather than simply rolling over it.

更重要的是，由于车辆接近音速的，它产生正面冲击波的液化地球未来，所以车轮最终通过地面雕刻，而不是简单地在它滚动。

GB/T2624--936 and production in line with ISO5167 - 1 standard expenditure devices, including pressure Kok access standard orifice, the standard nozzle, the flange pressure from the standard orifice, the trail from pressure from the standard orifice, the length of the nozzle And Venturi tube and cultural Venturi nozzle, double orifice, eccentric orifice, missing a round orifice, cone-shaped entrance orifice, the first-orifice, Pitot Venturi tubes, nozzles, such as the speed of sound. OVAL Co., Ltd.

生产符合GB/T2624--936和ISO5167--1的标准节流装置；包括角接取压标准孔板、标准喷嘴、法兰取压标准孔板、径距取压标准孔板、长径喷嘴以及文丘里管和文丘里喷嘴、双重孔板、偏心孔板、圆缺孔板、锥形入口孔板、端头孔板、皮托文丘里管、音速喷嘴等。

Measuring bone speed of sound was developed. This method measure bone density, and other bone properties such as cortical thickness, elasticity and micro-architecture, thus providing a more complete picture of bone strength.

可以用来测量骨密度和其他骨指标，比如：皮层厚度，柔韧度和显微结构，因此给我们提供了一张更完整的关于骨强度的照片。

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。