seismic prospecting through trough wave 槽波地震勘探
wave trough 波槽 ; [物] 波谷
long wave trough 长波槽
long-wave trough [气象] 长波槽
dicrotic wave trough 重搏波谷
wave crest and trough 波峰及波谷
And just as each wave has a crest, it also has a trough. Sometimes your level of motivation will be like a rushing tsunami.
就像每个波浪有波峰，也有低谷，我们的干劲也是如此，会时高时低。
Wave form block conveyer belt adopt trough degree greater than 0.03 baseband and block, horizontal baffle (level transport) make by two vulcanization.
波形挡边输送带采用成槽度不大于0.03的基带和挡边、横隔板(水平输送可不要)经两次硫化制成。
The results indicate that the disintegration of the jet column is caused by the surface waves propagating along the jet body. The jet breaks up at the wave trough.
结果表明：沿射流柱表面传播的表面波是引起射流柱破碎的主要因素，破碎点位于表面波的波谷。
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