波尔登 meaning in English

bourdon
paulden
polden
poulden

Based on this , it analyzes effect to cannon mouth vibration caused by tube curve bringing bourdon domino effect . from deducing formula , it calculated connection of tube camber and cannon jump of angle , and discussed feasibility of carrying through shot modifying by tube camber
在此基础上分析了身管弯曲引起的波尔登效应对火炮炮口振动的影响，并从炮身振动入手，通过公式推导，计算了身管弯曲度与火炮跳角之间的关系，从理论上探寻了根据身管弯曲度进行射击修正的可行性。