| 释义 | 
             
                period of operation
                
            旬xún 
 a period of ten days历时lì shí 
 last a period of time, take a period of time时段shí duàn 
 period of time示差操作shì chà cāo zuò 
 differential operation基期jī qī 
 base period战区zhàn qū 
 theater of operations, war zone疗程liáo chéng 
 course [period] of treatment有效期yǒu xiào qī 
 period of validity车床操作法chē chuáng cāo zuò fǎ 
 lathe operation器官移植术qì guān yí zhí shù 
 transplant operation结算期jié suàn qī 
 accounting period; settlement period; calculation period安全期ān quán qī 
 safe period寒武纪hán wǔ jì 
 cambrian period宽限期kuān xiàn qī 
 grace period旺汛wàng xùn 
 best fishing period帧周期zhēn zhōu qī 
 frame period鼎盛时期dǐng shèng shí qī 
 a period of great prosperity; at the height of power and splendour; heyday联合作战lián hé zuò zhàn 
 combined operations, joint operations营运主管yíng yùn zhǔ guǎn 
 operations supervisor; operations director允许外商独资经营yǔn xǔ wài shāng dú zī jīng yíng 
 allow full foreign equity operation白垩纪bái è jì 
 the Cretaceous period聘期pìn qī 
 employment period; employment term贬值时期biǎn zhí shí qī 
 period of depreciation铣削操作xǐ xuē cāo zuò 
 milling operation; milling machine operation围产期wéi chǎn qī 
 perinatal stage; perinatal period
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