The wave from vessel's launch causes crack of mooring chain for fixing pontoon and is considered to be solitary wave through analyses.
针对大船下水激起的波浪造成固定趸船锚链断裂的问题，分析了大船下水激起的波态是孤立波。用近似方法确定了孤立波的波高。
For breaking the world record, the world longest crack of firework was made. These workers were fixing for lighting the crack.
为了创下大世界基尼斯“世界最长鞭炮”纪录，工作人员在沿路安装爆竹。
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