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At present basic theory and welding criterion of UPW are defective, research on welding mechanism and melt behavior of the welding region is not enough for the difficulty in study. 由於超聲波塑料焊接是涉及多學科的交叉學科，研究難度較大，目前超聲波塑料焊接的焊接基礎理論和工藝規範還比較欠缺，對超聲波塑料焊接機理和熔接行為研究不足。
Nd:YAG Laser heat conduction welding is one of important laser welding mode which is applied to welding of thin parts. 激光熱導焊是激光焊接中一種重要的焊接模式,廣泛應用於薄件的焊接中。
His conduct is a mere cover-up for his nervousness. 他的行為只是為了掩護他的緊張。
Her conduct lies beyond all question and reproach. 她的行為不容懷疑，無可指責。
Such conduct is displeasing to your parents. 這種行為會使你的父母生氣的。
His conduct has always been above suspicion. 他的行為一直無可質疑。
Some metals weld better than others. 有些金屬容易焊，有的不容易焊。
She explained her conduct to her boss. 她向老闆說明了自己那種表現的原因。
She's pained by her son's conduct. 她對兒子的行為感到痛心。
Analysis of Cracking and Leak at Welding Region of a Liquefied Petroleum Gas Pipe 液化氣管線焊縫區開裂泄漏原因分析
Such conduct is beneath contempt. 這種舉動為人所不齒。
Do you feel able to conduct an orchestra? 您看您能指揮交響樂團嗎？
He has been asked to account for his conduct. 他被要求解釋他的行為。
The Measuring and Analysis of the Temperature and Stress in the Weld Region of the Coke Tower Skirt 焦炭塔裙座焊縫區域溫度及應力的測試與分析
She was offended by his remarks [conduct]. 他的話[行動]使她很不高興。
My conduct has always been above suspicion. 我的行為從來就是無可置疑的。
His base conduct was condemned by everyone. 他的無恥行為受到所有人的譴責。
Such conduct allows of no excuse. 這樣的行為是不容辯解的。
On reaching welding heat, the metal surfaces are pressed together. 當金屬表面達到焊接熱度時就會壓在一起。
Such conduct is not becoming to a gentleman. 這樣的行為興一個紳士的身分不相稱的。