N a step in ballroom dancing in which the feet are quickly crossed (双脚快速交叉的)鱼尾步
The typical salt tectonic styles include salt cored anticlines, allochthonous salt, salt pillows, salt (fault) welds, salt necking, salt-associated depressions and "fish-tail" structures.
其中典型盐构造样式有盐核背斜、外来盐、盐枕、盐焊接和断层焊接、盐缩颈、盐成凹陷和“鱼尾”构造。
The provided gear and gear rack mechanism have been used to designing and manufacturing ship model pushed with imitating fish-tail, and has been tested reliable and useful by moving on water.
这种齿轮齿条机构已被具体应用于仿生鱼尾推进船模的设计与制造，通过船模试水验证其功能是有效可靠的。
A rope from the second vessel was secured around the shark's tail, but repeated efforts to tow the fish into the water failed.
第二艘船上的一根绳子系在鲨鱼的尾巴上，但多次将鱼拖进水里的努力都失败了。
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