正中线搏动性肿块提示腹主动脉瘤破裂.A pulsatile midline mass suggests ruptured abdominal aortic aneurysm.偏头痛是一类发作性且常为单侧的搏动性头痛,是神经科常见病之一.Migraine a kind of common and frequent illness in nervous system....
The oven burners reignite automatically if blown out.烤炉的火如果吹灭了会自动再点燃。Some stoves are oil burners; others are gas burners.有些炉子是烧油的, 有些是烧瓦斯的.The gas stove has only two burners.这瓦斯炉只有两个瓦斯头....
上个月激进分子对地方自治的呼声更高了。Activists stepped up their demands for local autonomy last month.殖民地正要求获得更大程度上的自治。The colonies were claiming a larger measure of self-government.该自治市与德国的卡瑟尔市结成了友好城市。The borough is twinned with Kasel in...
遇到稀碱就容易环化.Cyclization occurs readily with dilute alkali.以柠檬桉叶油为主要原料经环化、催化氢化二步反应得到薄荷醇.Menthol was obtained from lemon eucalyptus oil via cyclization and catalytic hydrogenation.综述了二碘化钐在分子内环化反应中的应用.Application of samarium ...