久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

fathoming的音標(biāo)：...

n.測量v.理解…的真意( fathom的現(xiàn)在分詞 )，徹底了解，弄清真相...

Both the driving circuit and the fathoming circuit are also essential to the UATS.驅(qū)動電路和測深電路對于水聲靶標(biāo)系統(tǒng)而言同樣是不可或缺的....