钢结构的桥塔矗立于海面以上297米，结构采取了良好的制风振措施。
The main towers made of steel reached 297 m above the sea level and were erected with high accuracy while oscillation by the wind was carefully suppressed.
低噪旋振制样粉碎机是个多自由度非线性系统，文中通过对其工作机理的研究提出了合理选择参数的方法。
The spin-vibrating pulverizer is a kind of multi-freedom degree non-linear system. The methods of determining best parameters are given by the research of the working principles of the machine.
现场试验包括：①测定振冲器水平振动力作用下产生的地面加速度以及制桩时引起的地面加速度与距振点距离之间的关系；
The in-situ measurement includes:( 1 ) the ground acceleration due to horizontal vibrating force caused by the vibroflot and its variation with the distance from the vibrating center;
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