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- astrogeodetic undulations 天文大地起伏
- The downs fell in gentle undulations to the sea. 这块丘陵地略带倾斜伸向大海。
- There were also fine edifices which pierced the petrified undulations of that sea of gables. 还有不少美丽的屋宇，拔地而起，刺破那一片山墙海洋的石化波涛。
- A view from the sky shows the verdant undulations of central Colorado's Roan Plateau. 意译：高原图片集。从天空眺望显示那苍翠起伏的科罗拉多中心的菊花青色的高原。
- The breeze hollowed out undulations in the magnificent enormity of the chestnut-trees. 和风使高大华美的栗树丛此起彼伏，气势雄伟。
- The undulations of the human surge reached the steps, while all the heads floundered on the surface like a sea agitated by a squall. 无数的旗帜，在人头上空飞舞，忽而在人群中隐没，忽而又被举起，这时那些旗帜已经变成破烂的纸片了。
- Folds are undulations or waves in the rocks of the earth. They are best displayed by layered rocks, such as sedimentary and volcanic rocks. 褶皱构造就是地球中岩石的波状起伏。它们在沉积岩和火山岩这些层状岩石中发育最好
- He stood knee deep amongst the whispering undulations of the green blades with the lost air of a man just born into the world. 他挺直身子站在齐膝深、起伏不停、??作响的青草中，神色茫然，好像刚出世似的。
- You will learn hip drops and shimmies, undulations, half turns and wrist circle combined with graceful arm and shoulder moves. 经过一段时间的练习后，您将惊奇地发现：惹火的身段、迷人的曲线、健康的身体，原来就这么简单！
- The fish is propelled by undulations of a long-based dorsal fin while the body axis is in many cases held straight in swimming. 以依靠长背鳍推进的“尼罗河魔鬼”为研究对象,对柔性长鳍波动推进模式的运动学进行了研究。
- A report put together by KCRC found that sections of the track had minute undulations which contributed to the fractures in the undercarriage of many trains. 九铁发表车底组件裂纹报告，认为部份路段的路轨不平，引致问题。
- The greens contoured with subtle undulations, never severe, providing for stimulating and rewarding putting, where a good shot making and putting is honoured. 绿地起伏柔和，不但让击球者兴致盎然，同时也利于引球入洞。
- Undulations may be observed at the void volume if the diluent for the sample is different from the solvents (proportion and type) used in the mobile phase. 如果样品的稀释剂和移动相所有溶剂不同（比例和类型），空白溶液也会观察到波动。
- The effect of interface undulations on the geoid in China and its adjacent regions is calculated on the basis of the average density differences of the interfaces in this paper. 结合中国及邻区的数据,利用界面上下的平均密度差,计算了物质界面起伏对大地水准面的影响,发现莫霍界面的影响占地形质量影响的70%25左右,验证了均衡补偿理论。
- It must needs undergo some undulations before it returns to a state of rest, like a mountain sinking into the plain.There are no Alps without their Jura, nor Pyrenees without the Asturias. 在回到平静时期之前必须经过一段波折，好象高山慢慢达到平原一样，好比没有汝拉山区就没有阿尔卑斯山脉，没有阿斯图里亚斯，就没有比利牛斯山脉。
- Researchers are close to a complete understanding of the development of the structure of the cosmos, from undulations in the primordial plasma to the bright galaxy clusters of the modern universe. 研究人员已经几乎完全了解，宇宙结构是如何从太初游离电浆的波动，演化成为现今宇宙中的明亮星系团；
- astrogeodetic plumb line deflectio 天文－大地垂线偏差
- astrogeodetic plumb line deflection 天文-大地垂线偏差
- shaken into waves or undulations as by wind. 像被风吹一样的形成了波浪或者起伏。
- THE IONOSPHERIC UNDULATIONS DURING THE ANNULAR ECLIPSE OF SEPTEMBER 23, 1987 1987年9月23日日环食的电离层波动现象
