cide＝to cut（切） 变化型 cise
1 stated clearly andaccurately 叙述清楚而准确的
*precise details, instructions, measurements 准确的细节、明确的指示、精确的尺寸
* a precise record of events 对事件的准确的记载.
2 [attrib 作定语] exact; particular 精确的; 独特的
*at that precise moment 恰在那时
* It was found at the precise spot where she had left it. 那东西正好在她遗落的那个地点找到了.
3 (of a person, his mind, etc) taking care to be exact and accurate, esp about minor details （指人、思想等）精细的, （尤指）一丝不苟的
*a precise mind, worker 一丝不苟的头脑、工作者
* 100, or 99.8 to be precise100, 或准确说来是99.8
* (often derog 常作贬义) a man with a very prim and precise (ie too careful or fussy) manner 一个锱铢必较的男子.
1500-1600; Language: French;Origin:
précis, from Latin
praecisus, from praecidere 'to cut off'
precise information, details etc are exact, clear, and correct
= exact precise sales figures It was difficult to get precise information. 'She's a lot older than you, isn't she?' 'Fifteen years, to be precise .' [only before noun]
used to emphasize that you are referring to an exact thing
= exact At that precise moment, her husband walked in. The precise cause of the disease is unknown. the precise location of the ship the precise nature of their agreement
someone who is precise is very careful about small details or about the way they behave a precise, careful woman with precise movements of his hands
1. This depends on the precise radio- frequency of the 21- cm wavelength, or 1420 megacycles per second . 这种方法依靠21厘米波长或每秒1420兆周的精确无线电频率。
2. This depends on the precise radio- frequency of the 21- cm wavelength, or 1420 megacycles per second . 这种方法依靠21厘米波长或每秒1420兆周的精确无线电频率。
3. This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second. 这种通迅联系要靠21厘料波段，即每秒1420兆周的精确无线电频率。
4. Such undertakings require the precise planning and foresight of military operasions. 此举要求有军事行动般的密周部署和预见。
5. Such undertakings require the precise planning and foresight of military operations. 这种活动需要有军事行动般的周密布署和预见能力。
6. I can´t give you a precise date. 我无法告诉你确切的日期。
7. It sounds legal and precise, but examine it and it turns out to be ridiculously broad. 它听上去很符合法律，也很明确，但仔细查看一下，这问题就宽泛得荒唐可笑。