| 1. | According to the designer ' s experience and consulting the typical formula , firstly , to determine tentative materials " contents , then to adjust them by experiments , to be improving step by step and to constantly bring forth new ideas in the design
但是我国目前在焊材的设计方法上仍然以手工设计为主，一般是凭借设计者的经验，参考典型配方，初步拟定各物质的含量，再通过实验加以调变，逐步完善或改造创新。 |
