查询词典 difficult to ascertain

Aims We investigated aerenchyma formation in stems of riparian plants Arundinella anomala and Salix variegate as affected by addition of ethylene and a-naphthalene acetic acid under non-flooded conditions in order to ascertain whether phytohormone ethylene and auxin are direct stimuli for aerenchyma formation in flooded plants.

为了探究乙烯和α-萘乙酸是否是水淹环境条件下植物体内通气组织形成的直接原因，对三峡库区岸生植物野古草和秋华柳在无水淹环境条件下施加乙烯利和α-NAA后茎中通气组织的形成情况进行了研究。

In an effort to complement the AFI's 100 Greatest American Films of all-time, in the summer/fall of 1999, Landmark Theatres sponsored a nationwide popular opinion poll designed to ascertain the country's favorite foreign language films.

作为对美国电影协会一百部最佳美国影片评选活动的补充，1999年夏秋之际，Landmark Theatres举办了一次全国范围的民意调查，旨在选出民众最喜爱的外国影片。

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。

Aiming at the chaos complexity activities which may occur during the evolution process of mining area ecosystem, we emphatically analyze the application of associated dimention judgment method and Lyapunov factor analytic approach based on phase space restructuring technique. We can ascertain whether mining area ecosystem have chaos characteristic or not according to these methods. It has important theory value for complexity research of mining area ecosystem.

其次，针对矿区生态系统演变过程中可能出现的混沌复杂行为，基于相空间重构技术我们重点分析了关联维数判断法和Lyapunov指数分析法的应用，依据这些方法，我们可以定量的判断矿区生态系统是否具有混沌特性，这对于我们进行矿区生态系统的复杂性研究具有重要的理论价值。

Most what ascertain letting a person does not appear is, in " abscond door " after erupting like Li Liang the wind of aphonia is cast actually He Liliang comes out to speak in same time, both the tacit agreement between is surprising.

最让人捉摸不透的是，在"潜逃门"爆发后与李亮一样失声的风投竟然和李亮在同一时间出来讲话了，两者间的默契令人吃惊。

One of the key processes of the resource appraisement is to ascertain and evaluate the criterion of evaluation parameters.

资源评价关键环节之一就是评价参数标准的确定和求取。

Neither had he neglected to ascertain the name of the piece to be played that night at the Teatro Argentino, and also what performers appeared in it.

这已够使阿尔贝忙一天的了；但他竟还有足够的时间来看看爱根狄诺戏院的节目单，来了解一下那天晚上的剧目和演员。

I ascertain that she doesn't love me.

我确定她不爱我。

I hope you will ascertain the extent of the damage.

我希望你去确认损坏的程度。

I ascertain that I can finish it .

我确定可以完成它。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。