查询词典 difficult task

When the domain is complex, this is a difficult task, calling for the concentrated effort of talented and skilled people.

当领域复杂时，要求有天赋和技术的人们集中全力是一项困难的任务。

The effects on core collection development with different sample proportionsDuring core collection development a difficult task comes when attempting to reduce the sample size of a large collection without losing its diversity.

不同聚类方法和取样策略的评价聚类方法与核心库的构建有着密切关系，不同的聚类方法对稻米品质性状核心种质的构建可以产生不同影响。

He especially enjoys the translation of a number of allusions used in the poem and complimented the translators as having creditably accomplished a very difficult task.

他尤其欣赏诗中许多引喻的翻译，并赞扬译者非常胜任地完成一项艰难任务。

The torn condition of many leaves, the faded state of the ink, and the covering of the original writing by the later made the decipherment an extremely difficult task; some portions are hopelessly illegible.

16分的情况很多树叶，淡忘了国家的墨迹，并涵盖了原来以书面后来作出decipherment一项极为困难的任务；部份绝望地辨认。

Chromosome analysis is an important and difficult task in clinical diagnosis, mutagen dosimetry and biological research.

一、引言染色体分析是临床诊断、诱变因素剂量学和生物学研究的一个重要而困难的任务。

Self healing is a difficult task in this current dream upon earth; as there are so many forces vying to strip the love that is required to foster the healing.

在地球当前的梦想中，自我疗愈是一项艰难的工作，因为有如此多势力竭力要剥夺疗愈所需的爱。

Eddy current is an effective method in which the most difficult task is the processing of the signal.

然而用涡流法对它进行检测的最大难度在于检测信号的处理。

Your starter motor for your car has really thick cables allowing electrons from the twelve volt power source to do their job in turning over you engine, which is a considerably difficult task.

你对你车起动电机电缆厚确实让来自12个电子伏特电源的不完美，在你翻开发动机这是一个相当困难的任务。

This can be a difficult task for the inexperienced engraver as good graver control is important.

这可以是一个良好的控制没有经验的雕刻更严重困难的任务是重要的。

Of course, the mathematical proof of ergodicity, even in a hard ball system with only few degrees of freedom, is still a difficult task.

当然，即使对具有很少自由度的硬球系统，遍历性的数学证明也仍然是一件非常困难的工作。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。