电烙铁头 meaning in Chinese

electric soldering bit

( 4 ) the fundamental principles of fiber digital holographic interferometry is presented . based on this , the poisson ' s ratio of material , the deformation of a metal plate and the temperature distributing arounding a electric iron are successfully measured
( 4 )运用数字全息干涉术测量了金属板在外力作用下的形变，观察了电烙铁头周围温度场的分布，同时探讨了利用光纤数字全息干涉术测量材料泊松比的可行性。