preservative
                                                    英 [prɪ'zɜːvətɪv]
                                                                        美 [prɪ'zɝvətɪv]
                        
                
                
                
                    
                        - n. 防腐剂;预防法;防护层
- adj. 防腐的;有保存力的;有保护性的
 
                
                    
                                    
                
                                                                                        preservative 中文词源
                
                
                    preservative 防腐剂来自preserve,保护,保存。引申词义防腐剂。
                 
                                                preservative 英文词源
                
                
                    
                        - preservative (adj.)
- late 14c., from Old French preservatif and directly from Medieval Latin praeservativus, from stem of praeservare (see preserve (v.)). The noun is from early 15c., "a preservative medication;" sense of "chemical added to foods to keep them from rotting" is from 1875.
 
                
                                                    preservative 双语例句
                
                
                    1. The wood is treated with preservative to prevent decay.  这块木头用防腐剂处理过以防止腐烂. 来自《简明英汉词典》
 - 2. Make sure the panels are treated with a wood preservative. 
- 确保镶板用木材防腐剂处理过.
来自《简明英汉词典》
 
- 3. New timber should be treated with a preservative. 
- 新采的圆木应进行防腐处理.
来自《简明英汉词典》
 
- 4. Salt is a preservative for meat. 
- 盐是肉类的防腐剂.
来自《现代英汉综合大词典》
 
- 5. Though the panels come pre-treated, they needed a final sealing with two coats of preservative. 
- 虽然这些镶板运来时经过了预处理,但是还需要涂上两层防腐剂进行最后的密封。
来自柯林斯例句