approximation
英 [ə,prɒksɪ'meɪʃn]
美[ə'prɑksə'meʃən]
	    - n. [数] 近似法;接近;[数] 近似值
 
英英释意
- 1. an approximate calculation of quantity or degree or worth;
 - "an estimate of what it would cost"
 - "a rough idea how long it would take"
 
- 2. the quality of coming near to identity (especially close in quantity)
 
- 3. an imprecise or incomplete account;
 - "newspapers gave only an approximation of the actual events"
 
- 4. the act of bringing near or bringing together especially the cut edges of tissue