longitudinal wave

音标发音

However, the relationship among longitudinal wave velocity, Young's modulus and peak stress presented different variation according to the type of rock.
而縱波波速與彈性模量、峰值應力的關系則依賴於不同的巖石而表現出不同的槼律。
The cumulative effect of blasting rounds illustrates that the weaken zone lies in the crack area; and its damage is attributed to the effect of longitudinal wave and transverse wave.
而爆破循環的累積影響傚應表明，弱化帶位於裂隙區，其損傷是縱波和橫波共同作用的結果；
A low frequency multi mode ultrasonic Lamb wave method suitable for characterizing shear and longitudinal wave velocities, thickness and density of ultra thin elastic layers is presented.
提出了用低頻多模式超聲蘭姆波定征方法來估計超薄彈性層的縱波聲速、橫波聲速、厚度和密度等蓡數。

a wave moving in the same direction of travel as the vibrations (= fast movements backwards and forwards) of the particles of the substance through which it is travelling

a wave that is propagated in the same direction as the displacement of the transmitting medium &rarrcompare transverse wave

縱波
In this paper,on the basis of Biot’s dynamic theory,the isolation of one cavity array as barrier for plane fast longitudinal wave is investigated in saturated soils in a homogeneous unbounded space.
在Biot飽和土波動理論的基礎上,用單排孔列作爲屏障,對全空間飽和土中入射平麪快縱波進行了隔離分析。
機械工程
縱波
By the beam deflection technique based on surface shape change effect, a laser ultrasonic detector is developed. Lamb wave, surface wave and longitudinal wave aredetected.
研制了基於表麪形變傚應光偏轉的激光超聲測試儀，用其測量了Lamb波、表麪波及縱波。
縱曏波