partial case-control study 不完全病例对照研究
Entironment in partial study area had been meliorated, but the durative and exasperate trend in whole area had not altered at all.
研究区局部的生态环境恶化趋势得到控制,但是整个地区持续恶化的趋势却没有得到根本性的扭转。
Eating organic produce could be a partial solution, although one study suggests that the cost of avoiding intensive farm chemicals would mean a 31% increase in food prices.
进食有机食物或许能在一定程度上解决问题,可一项研究表明如果要避免大量使用农业化学肥料,粮食价格将需要上涨31%。
The annual water quality reports that utilities are required to send customers provide a partial picture, the study says, as they contain no information on unregulated chemicals.
这项研究表示,自来水公司会按要求每年向客户提供年度水质报告,包括部分照片,但他们没有提供关于法律限定之外化学物质的任何信息。
应用推荐