Writing a song is not as difficult and complicated as it seems.
创作歌曲并非像看起来的那样复杂艰难。
Efficient separations of platinum metals from each other are quite difficult and complicated.
铂族元素的相互分离相当困难和复杂。
The calculation of mass distribution characteristics of fuel in tanks is a difficult and complicated work.
飞机燃油质量分布特性计算是一项复杂困难但又是十分重要的工作。
Because the collaborative supply chain is a complex giant system, it is difficult and complicated to study.
由于协同供应链是一个复杂的大系统，其研究的复杂性和难度也很大。
Simulation of hydrocarbon migration and accumulation is one of the most difficult and complicated contents of basin modeling.
油气运聚史模拟是盆地诸史模拟中难度最大、最复杂的内容之一。
Sjogren s syndrome is one of clinical difficult and complicated diseases and there is no radical treatment for it at present.
干燥综合征为临床难治疾病之一，目前尚没有根治的方法。
It is difficult and complicated to analyze the power flow of 3k type planetary gear trains and deduce their efficiency formulas.
目前，3K行星轮系的功率流向分析和啮合效率公式的推导既难又繁。
The major, difficult and complicated cases shall be collectively discussed and studied by the Administrative Punishment Committee.
重大、疑难、复杂案件由行政处罚委员会集体讨论、研究。
It is difficult and complicated to analyze the power-flow of the complex epicyclic gear trains and compute their transmission ratio and meshing efficiency.
目前，复杂周转轮系的功率流分析、传动比和啮合效率的计算既困难又繁复，而应用离散分析法可以改变这一局面。
Objective To summarize Professor Liu Shiqiong s experience on applying the acupuncture therapy of midnight-noon ebb-flow to cure difficult and complicated cases.
目的总结刘世琼教授运用“子午流注”针法治疗疑难病症的经验。
At present, the analysis of power-flow of satellite gear drive and calculations on its transmission ratio and meshing efficiency are both difficult and complicated.
目前，卫星齿轮传动的功率流分析、传动比和啮合效率计算，既难又繁。
Surveying the internal resistance of a sensitive electric current meter is a rather difficult and complicated electromagnetic experiment which is hard to get a high precision.
灵敏检流计内阻测量实验是电磁学实验中一个比较复杂有相当难度的实验，难就难在如何提高测量精度。
During the test and production of in-situ leaching of sandstone deposit, it is very difficult and complicated to exploit boreholes when confined water head of ore-bearing acquifer is quite low.
在砂岩矿床的地浸试验和生产中，含矿含水层地下水承压水头很低时，地浸钻孔的开拓难度很大且工艺复杂。
When adding distributed data into the database system, distributed query process is more difficult and complicated. The cost of query process is different due to different query process tactics.
在分布式数据库系统中，由于数据的物理分布使得分布式查询处理增加了许多新的复杂性，不同的查询处理策略，其查询处理代价和复杂度是大不一样的。
Life is difficult, and complicated, and beyond anyone's total control, and the humility to know that will enable you to survive its vicissitudes.
人生是困难的、复杂的，且超出任何人的完全掌控，而了解此事所感受到的谦卑将让你在它的多变中存活。
Life is difficult, and complicated, and beyond anyone's total control, and the humility to know that will enable you to survive its vicissitudes.
生活是困难的，也是复杂的，它完全超出任何人的控制，谦虚的认识到这些能使你们在生命的沉浮中得以顺利生存。
Life is difficult, and complicated, and beyond anyone's total control, and the humility to know that will enable you to survive its vicissitudes.
生活是困难的，也是复杂的，它完全超出任何人的控制，谦虚的认识到这些能使你们在生命的沉浮中得以顺利生存。
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