英语释义

1. the apparent change in position of a star usually expressed in seconds of arc per year that results from the projection on the celestial sphere of its motion with respect to the solar system — see tangential motion

片语

common proper-motion binary共自行双星

proper-motion membership自行成员星

stellar proper motion恒星自行

restricted proper motion[天]

common n proper-motion binary共自行双星

proper motion star大自行恒星

common proper-motion pair共自行星对

proper-motion ratio自引率

common n proper-motion pair共自行星对

英汉例句

• high proper motion normally indicates a nearby star, so displaying proper motion labels is a quick way of spotting such stars.

  高自行通常表示是一颗近距离恒星，所以显示自行标签是确準此类恒星位置的快捷途径。

• i don't look too fat, but my weight is overweight, i hope that through reasonable prandial and proper motion to improve my body quality.

  我看起来不太胖，但是我的体重已经超标了，我希望通过合理的膳食和适当的运动来改善我的身体素质。

• developing the way that replaces an industry is policy guide and drive, 2 be from be introduced domestic and internationally and induct , 3 it is proper motion development and development.

  发展替代产业的途径一是政策引导和推动，二是从国内外引进和吸纳，三是自行研制和开发。

• some critical criterion for the motor design are outlined so as to realize its proper motion and improve its work properties.

  在此基础上，从实现该种电机的运动和提高其输出性能的角度出发，提出了电机的设计要求。

• if ask for those who get fellow student of stay dormitory collectivity, agree and sign, collect fees every night 20 yuan, bed by search connection of proper motion of the person that hire.

  如果征得留宿宿舍全体同学的同意和签名，每晚收费20元，床位由寻租者自行联系。

• enterprises can pay the tax payable and the interest of postponed tax in proper motion when they sell the machining trade material or product in domestic market by authorizations.

  经批準内销的加工贸易料件或产品所需缴纳的税款及缓税利息由企业自行向海关缴纳。