1.
Analysis on the Difficult Combination of Each Event in the 9~(th) and 10~(th) World Sports Aerobics Championship Contest
第9～10届健美操世界锦标赛各项难度组合动作的分析
2.
Algorithm and Rationality Evaluation of Automation Generating Paper Difficulty
自动组卷难易度合理评估的算法设计
3.
Status Quo of Maneuver Layout in Optional Routines in Women Changquan in China;
我国高水平女子长拳自选套路难度动作组合编排现状分析
4.
Utilization of Combining Innovation in the Difficult Actions Innovation of Wushu Routine Exercise;
组合连接创新法在武术套路难度动作创新中的运用研究
5.
Study of Fe-C Micro Electrolysis Combined Pretreatment Process for High Density and Refractory Organic Wastewater
铁炭微电解组合工艺预处理高浓度难降解有机废水的研究
6.
The refugees were resettled in Canada by a U.N. relief organization.
难民被联合国救难组织安顿在加拿大定居。
7.
Research on Paper Algorithm Base on Knowledge-difficulty Proportion
基于知识点-难度比例的组卷算法研究
8.
Their problem was to bind the black powder together again so it would be hard enough to serve as a writing instrument.
它们的难题是如何重新组合这些黑色的粉末，使它成为有足够硬度的书写工具。
9.
All first 8 teams (with a single exception of Brasil duo) performed the combinations of very high Degree of Difficulty.
所有的八个组合（巴西的一对是个例外）选用动作的难度系数都相当大。
10.
Admittedly, the possible combinations are powerful, but they are very hard to learn, hard to remember, and hard to use.
必须承认，这些可能的组合非常有用，但是它们难学、难记又难用。
11.
UNHCR/OAU Agreement of Cooperation
难民专员办事处和非统组织合作协定
12.
Agreement between the United Nations and the International Refugee Organization
联合国与国际难民组织的协定
13.
Group of Governmental Experts on International Cooperation to Avert New Flows of Refugees
国际合作防止新难民潮政府专家组
14.
Microstructure and Mechanical Properties of Non-Refractory Tungsten Alloy
非难熔钨合金的微观组织及力学性能
15.
composite-temperature-compensation strain gauge
组合温度补偿应变计
16.
classification of organic compounds by solubility
有机化合物的溶度分组
17.
Do you have any difficulty in meeting your production schedules?
在配合生产进度方面，你们有困难吗?
18.
To interpret at the UN is a difficult task.
在联合国做口译是件难 度很大的差事.