Every time you review a word using our Vocabulary Trainer, its strength level will increase. Simply tap the button at the bottom of the screen and choose which set of words you'd like to train.
每当您使用词汇培训师功能对某个单词进行一次复习，该单词的强度等级就会提高一点。
The strength of the ring nugget in sheet-to-tube single-sided spot welding is different from that of the button nugget in traditional sheet-to-sheet spot welding.
管板单边电阻点焊由于其焊接结构的特殊性，生成熔核的外形为环状，其强度不能用传统的圆形焊点强度经验公式计算。
The strength of the ring nugget in sheet-to-tube single-sided spot welding is different from that of the button nugget in traditional sheet-to-sheet spot welding.
管板单边电阻点焊由于其焊接结构的特殊性，生成熔核的外形为环状，其强度不能用传统的圆形焊点强度经验公式计算。
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