pertinency 

英汉解释

n. 相关性，有关性；适切，妥当

同义词

n. applicability，pertinence

反义词

n.   inapplicability

参考例句

1. Its significance lies in the further efficiency and pertinency of the second language teaching.
其意义在于能够使第二语言教学更为高效，更具针对性。
2. The the maximum satisfies the personality demand of customer during the period of designing. Therefore, the system has stronger practicability and pertinency.
在设计过程中最大限度满足用户的个性需求，因此，该系统具有较强的实用性和针对性。
3. At the same time, I analyze the pertinency of petroleum industry and taxation, and illuminate the significance of perfecting the taxation policy of petroleum industry.
同时，对石油行业与税收的相关性进行分析，阐明当前强调完善石油行业税收政策的重要性。

英英解释

n.
  1. relevance by virtue of being applicable to the matter at hand

网络释义

pertinency
适当; 切合性;
Pertinency Factor
查准率; 切合因子;
pertinence pertinency
适切; 有关性; 针对性;
pertinence pertinency relativity
相关性;