閏秒 的英文怎麼說
中文拼音 [rùnmiǎo]
閏秒
英文
leap second-
A leap second on the new year s day 7 december 2005
2006年元旦日的閏秒( 2005年12月7日)The first leap second was added on june 30, 1972, according to nist
據國家標準與技術協會介紹,第一個閏秒是在1972年6月30日被加入的。Under an international pact, the preference for leap seconds is december 31 or june 30
根據國際公約,一般在12月31日或6月30日在協調世界時中加入或減去閏秒。Deciding when to introduce a leap second is the responsibility of the international earth rotation and reference systems service
國際地球自轉服務組織負責決定何時加減閏秒。Us scientists want to change the current system, which keeps clocks in synch with solar time by adding a leap second every 18 months or so
美國科學家希望改變現行系統,亦即透過每隔約18個月添增1閏秒,讓時鐘與太陽時保持一致。Since 1999 until recently, the two time standards have been in close enough synch to escape any need to add a leap second, nist said
該協會說,從1999年開始到最近幾年,原子時和天文時一直處于同步狀態,所以不需要增加一個閏秒。Scientists are delaying the start of 2006 by the first " leap second " in seven years, a timing tweak meant to make up for changes in the earth ' s rotation
科學家們把2006年的到來推遲了一「閏秒」 。此次全世界調時距上次已有7年時間,而調時的主要原因則是地球自轉速度的變化。Scientists are delaying the start of 2006 by the first
科學家們把2006年的到來推遲了一「閏秒」 。The adjustment will be carried out by sticking to an extra second into atomic clock at the stroke of midnight
據美國國家標準與技術協會介紹,全世界的原子鐘都將在協調世界時2005年12月31日午夜加上一個閏秒。The adjustment will be carried out by sticking an extra second into atomic clocks worldwide at the stroke of midnight coordinated universal time, the widely adopted international standard, the u. s
據美國國家標準與技術協會介紹,全世界的原子鐘都將在協調世界時2005年12月31日午夜加上一個閏秒。Although it is possible to have a negative leap second - that is, a second deducted from coordinated universal time - so far all have been add - ons, reflecting the earth ' s general slowing trend due to tidal braking
盡管也有實施負閏秒制從協調世界時中扣除一秒的可能,但迄今為止,只有加,沒有減,這說明由於受潮汐減速的影響,地球的自轉速度大體上呈減慢趨勢。Although it is possible to have a negative leap second - - that is, a second deducted from coordinated universal time - - so far all have been add - ons, reflecting the earth ' s general slowing trend due to tidal braking
盡管也有實施負閏秒制(從協調世界時中扣除一秒)的可能,但迄今為止,只有加,沒有減,這說明由於受潮汐減速的影響,地球的自轉速度大體上呈減慢趨勢。A leap second is added to keep uniform timekeeping within 0. 9 second of the earth ' s rotational time, which can speed up or slow down because of many factors, including ocean tides
增加這一閏秒是為了保證協調世界時原子時和地球自轉時間天文時之間的差距控制在0 . 9秒以內,地球自轉速度的加快或減慢受到很多因素的影響,潮汐就是其中之一。分享友人