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chronometric adj.(用)精密計時表[天文鐘等](測定)的。

chronometry

In the early days , the observatory was tasked with making meteorological and magnetic observations and provided chronometric services based on astronomical observations . the observatory has kept observation records since 1 january 1884 . today , it continues to monitor and forecast the weather 天文臺早期的工作包括觀測氣象、地磁、以及根據天文觀測報導時間,并由1884年1月1日開始保存觀測記錄,天文臺至今仍然肩負監測本港天氣的重任。

Class 14 precious metals and their alloys and goods in precious metals or coated therewith , not included inother classes ; jewellery , precious stones ; horological and chronometric instruments 商標注冊類別14不屬別類的貴重金屬及其合金,以及不屬別類的貴重金屬制品或鍍有貴重金屬的物品;珠寶,寶石;鐘表和計時儀器。

Class14 : precious metals and their alloys and goods in precious metals or coated therewith , not included in other classes ; jewellery , precious stones ; horological and chronometric instruments 類別14 :不屬別類的貴重金屬及其合金,以及不屬別類的貴重金屬制品或鍍有貴重金屬的物品;珠寶,寶石;鐘表和計時儀器。

Precious metals and their alloys and goods in precious metals or coated therewith , not included in other classes ; jewellery , precious stones ; chorological and chronometric instruments 不屬別類的貴重金屬及其合金,以及不屬別類的貴重金屬制品或鍍有貴重金屬的物品珠寶,寶石鐘表和計時儀器。

The need to gauge the divisions of the day and night led the ancient egyptians , greeks and romans to create sundials , water clocks and other early chronometric tools 古埃及人、希臘人與羅馬人為了測定晝夜之別,發明了日晷、水鐘及其他早期計時工具,后來由西方世界繼承了這些技術。