Dual-action toothpaste with Xylitol and baking soda to remove stains and surface discolouration from teeth.
这种双重作用的牙膏，含有木糖醇和小苏打，能 清除牙齿表层的污垢和污色。
2
With practical application of the abovementioned principle, designed new type of dual-cylinder dual-action hydraulic mud pump and completed the prototype.
本文通过对方案的实际应用，设计了双缸双作用液压泥浆泵。
3
Using your rotary or DA (Dual-Action) polisher, apply Deep reflections XP or desired product on a CG MPT BLUE, Hex-Logic Blue Ultra-Soft High Gloss Glazing Pad.