hammering method造句

• Standard test method for determination of rock hardness by rebound hammer method
  用回弹锤法测定岩石硬度的标准试验方法
• The instant hammering method to measure the density of silt or sand subsoil is a new research subject
  利用瞬态锤击法来测定粉砂土的密实度是一项新课题。
• ( 3 ) in order to prove multi - point exciting experiment good , we employ traditional ergography ( hammering method ) to make experiment , peak value pick - up method to modal identification , and compare identification result by hammering method with vibration table experiment . the result revel that vibration table experiment can obtain larger energy and more adequately excite
  在重频、密频时、在试验试件的结构巨大,需要大的能量激励才能充分激出完全模态时、在一激励点为某阶感兴趣模态的节点时,都需要用多点激励的方法。