这些结果具有重要意义，因为多环芳烃二醇环氧化物极易与DNA反应，进而导致变异，因此被视为香烟烟雾中所含多种多环芳烃中最重要的致癌物质。
These results are significant because PAH diol epoxides react readily with DNA, induce mutations, and are considered to be ultimate carcinogens of multiple PAH in cigarette smoke.
于是，围绕管子的冰就冷却了乙二醇，现在冷却了的乙二醇又被用于水的冷却，这些水沿着供水管道，输送到城市建筑物的制冷机组。
The glycol is cooled by the ice surrounding the tubes, and the now-cold glycol is used to chill a different water supply that gets piped to refrigeration units in city buildings.
当材料悬浮于增稠剂(海藻酸丙二醇酯)时，这些釉质基质蛋白可以在牙根表面滞留长达两周。
These enamel matrix proteins when suspended in a thickening agent (propylene glycol alginate - PGA) are retained on root surfaces for up to two weeks.
的影响，双酚a，然后比较这些雌二醇，自然形式的人类雌激素。
The effects of BPA were then compared to those of estradiol, a natural form of human estrogen.
这些化学制品适合于尿烷泡沫加工，并较传统类型二元醇衍生的泡沫不易燃烧。
These chemicals are compatible and processable in urethane foam formulations and less flammable than foams derived from other conventional type glycols.
这些香料都是以草酸二乙酯与相应的醇为原料，通过酯交换反应来合成的。
This flavour is synthesized by the ester interchange using diethyl oxalate and relative alcohol as materials.
这些成形颗粒包含按摩尔比为1∶1与胆固醇组合的雌二醇，并与孕酮联合给药。
The shaped particles comprise estradiol compounded in a 1:1 molar ratio with cholesterol, and are administered in combination with progesterone.
这些妇女每年拍双膝X-光片，并测定血液中雌二醇和尿中雌二醇代谢产物2-羟雌酮和16-羟雌酮水平。
The women had annual X-rays of both knees along with analysis of blood levels of estradiol and urine levels of 2-hydroxyestrone and 16?hydroxyestrone, two estrogen metabolites.
这些妇女每年拍双膝X-光片，并测定血液中雌二醇和尿中雌二醇代谢产物2-羟雌酮和16-羟雌酮水平。
The women had annual X-rays of both knees along with analysis of blood levels of estradiol and urine levels of 2-hydroxyestrone and 16?hydroxyestrone, two estrogen metabolites.
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