弄清,确定,查明( ascertain的过去式和过去分词 );

Asthma status at 7 and 32 yrs of age was ascertained by questionnaire.
通过问卷调查明确7岁和32岁的哮喘状态.
来源:互联网摘选The first ascertained appearance of the Aryan family was in connection with the domestic animals.
雅利安族最初呈现的明确形象是与饲养家畜分不开的.
来源:词典精选例句It'should be ascertained if preventive or control procedures have already been attempted.
应查明是否已采取了预防或控制措施.
来源:词典精选例句通过实验研究确定了适当的合成工艺条件,并制备出NBT基超细粉体.
来源:互联网摘选The rim of the plugs is usually not exposed and the enveloping material cannot be ascertained.
岩栓的边缘通常是不露出的,因而不能确定其包裹的物质是什么.
来源:词典精选例句第六部分对整篇论文进行总结, 指出本文的创新点,并确定日后进一步进行深入研究的方向.
来源:网络文摘精选ADY应用于干红葡萄酒发酵,通过试验,确定合适的工艺条件,生产的干红葡萄酒质量较好且稳定,取得了较为理想的效.
来源:互联网摘选She could not take her ease till she had ascertained some particulars.
她得把有些具体事弄确切了,才能放下心来.
来源:互联网摘选The previously unidentified objects have now been definitely ascertained as being satellites.
原来所说的不明飞行物现在已证实是卫星.
来源:《简明英汉词典》The optimum technological parameters were ascertained by orthogonal experiment.
用正交试验方法优化确定了工艺参数.
来源:互联网摘选The previously unidentified object has now been definitely ascertained as satellites.
先前的不明飞行物现在已经查明了是卫星.
来源:互联网摘选根据野外接触关系和一组锆石Pb-Pb蒸发年龄(2451Ma),确定其成岩时代为太古代。
来源:互联网摘选Up to now , the effects of extracorporeal shock wave ( ESW ) on reproduction remain ascertained.
体外冲击波 ( ESW ) 对生殖的影响尚不清楚.
来源:互联网摘选Insofar as it can be ascertained, the horse lung is comparable to that of man.
就目前的研究程度而言, 马的肺可以和人类的肺相提并论.
来源:互联网摘选以苦瓜、桔梗为实验原料,研究苦瓜桔梗复合饮料的加工工艺.
来源:互联网摘选Overvoltage protection level and maximum allowable energy dissipation of MOV are ascertained.
确定了过压保护的重要元件MOV的过电压保护水平和最大允许能耗.
来源:网络文摘精选It's ascertained that the certificate is behind the curtain of the stainless steel container.
经查实证书在不锈钢容器的帘子后面.
来源:互联网摘选仅仅从这两年的的监测来看,锋面的气候变化不能完全可靠地被确定下来.
来源:互联网摘选These accidents have been ascertained through investigation to be major liability accidents.
通过调查认定,都是重特大责任事故.
来源:互联网摘选Biologists have ascertained that specialized cells convert chemical energy into mechanical energy.
生物学家已经确定有专门的细胞把化学能转变成机械能.
来源:互联网摘选The scientists have ascertained a new form of vaccine for the common cold.
科学家们发现了一种用于普通感冒的新型疫苗.
来源:网络文摘精选As a matter of fact, you needn't bother to ascertain. I ascertained. They're real.
说实在的, 你们不必细看,我检查过了,统统都是真的.
来源:词典精选例句Physical at the site must be ascertained in order to make a sketch of the dam.
坝址处的自然条件必须查明,以便绘出坝的示意图.
来源:互联网摘选结果确定表达明显上调的两个蛋白质分别为原肌球蛋白 ( tropomyosin,TM ) 和丙酮酸激酶 ( Pyruvatekinase,PK ).
来源:互联网摘选
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