ascertain 六级考研雅思GRE

1.I ascertained that she was dead.

我断定她已经死了。

2.We must ascertain the usual customs of the local people and arrange accordingly.

我们必须了解当地人民的风俗习惯,作出相应安排。

3.I'm going to ascertain the truth.

我真相。

4.It is ascertained that the PABA may be N-dimethylated using dimethyl sulfate as a methylation agent.

确定以硫酸二甲酯为N——甲基化剂,对对氨基苯甲酸PABA进行N——二甲基化.

5.Inference, which includes apodictic inference and probable inference, is the chief thought pattern of ascertaining case quality.

推理是到案件性质的主思维形式，它包括必然推理和或然推理。

6.A method to ascertain airtightness of regulable refrigeratory, airtightness material selection and a way to made air retaining wall were discussed in this paper.

论述了气调库气密性的确定方法,气密材料的选择及气密层的做法,介绍了用正压法检测气调库气密性的具体操作过程,并给出了国内外的不同气密性标准。

7.Throughout the classical period they believed that man does not create the mathematical facts; they preexist. He is limited to ascertaining and recording them.

在整个古典时期，他们相信数学事实不是人创造的，而是先于人而存在的，人只肯定这些事实并记录下来就行了。

8.The previously unidentified objects have now been definitely ascertained as being satellites.

原来所说的不飞行物在已证实是卫星。