aporia;difficult point;difficulty;nodus;rub ;

Advancing suburban assurance is the difficulty and keystone of domestic insurance enterprise.
发展农村保险是我国保险业发展的难点和重点.
来源:网络文摘精选This is because each language has many intricacies and peculiarities.
这是由于每一种语言都有许多难点和特殊的地方.
来源:词典精选例句Design of four-bar linkage is emphasis and difficulty of hydraulic support.
四 连杆机构 的设计是液压支架设计的重点和难点.
来源:互联网摘选Difficulties in allocating surge bin logistics system reliability analysis are analyzed.
分析了增设缓冲仓物流系统可靠性分析的难点.
来源:互联网摘选Jointless turnout is a key technique in developing CWR track across section.
道岔无缝化是跨区间无缝线路发展的难点和关键技术.
来源:互联网摘选Keeping this difficulty in view he held the extra chessman in reserve.
想到这一难点,他就不愿把另一只棋子拿出来.
来源:词典精选例句All the chief difficulties crop up in the synthesis of the enone ( 1 ).
所有的主要难点都涌现在烯酮 ( 1 ) 的合成中.
来源:词典精选例句However, the modulation-demodulation of ultraviolet and voice transmission are the key technologies.
然而, 紫外光通信的 调制解调技术 以及语音传输是整个系统的关键难点.
来源:互联网摘选Comprehensiveness characterizes the most difficult problem of geographical science.
综合性是地理学最高层次的科学难点问题.
来源:互联网摘选
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