high tide;low tide

Socialist construction in the 20th century has undergone a winding course of development which involved high tide and low tide , success and frustration .

20世纪社会主义建设经历了一个高潮与低潮、成功与挫折的曲折发展历程。

In the case of point source continuous discharge for 5 hours , the particles are discharged respectively at the instance of high tide and low tide .

点源连续排放5个小时的情况下，分别在高潮时刻和低潮时刻开始投放粒子；

Is It a High Tide or a Low Tide ? & A Different Opinion on the Second Upsurge of Library Science

是高潮，还是低潮？&对第二次图书馆学高潮说的异议

A tract of low muddy land near an estuary ; covered at high tide and exposed at low tide .

靠近江河口低洼的泥地；在水位高涨时被淹没、水退去即露出来。

Of , relating to , or being the region between the high tide mark and the low tide mark . Hornblende bearing varieties bridge the gap over to amphibolites which are in bands and dikes .

潮间带的属于、关于或是高潮线与低潮线之间区域的含角闪石的变种填补了带状和脉状角闪岩的中间相。

The sand ridge and trough are in High Flow Erosion phase at high tide and low tide time and then step into Low Current Deposition phase when the current direction changes .

沙脊和沟槽在高、低潮时处于高流速侵蚀阶段，在转流时处于低流速淤积阶段。