1.
The apparent path of a celestial body as it rises above and falls below the horizon.
周日弧，夜间弧天体升起或落下地平线时的明显路径
2.
sunshine carbon arc
日光型碳弧老化试验机
3.
An arc be a part of the circumference of a circle or other curved line
弧是圆周或曲线的一部分
4.
By definition, one revolution, or 360 deg, equals 2π radians.
根据定义，转一周（即360度），等于2π弧度。
5.
An arc is a part of the circumference of a circle or other curved lines.
弧是圆周或曲线的一部分。
6.
Design of Injection Mould with Multiple-cores Puller-Equi-spaced in Circumference,Core Pulling in Circular Arc Trace
周向均布多型芯圆弧抽芯注塑模设计
7.
Think today and speak tomorrow .
今日想周全，明日再发言。
8.
H_α Post-Flare Loops on May 16,1981
1981年5月16日耀斑中的环弧系
9.
Separate complex keys or indices from their surrounding brackets.
对复杂的键或索引，将其与周围的括弧分开。
10.
Study on the Design Method of Circumferential Arc Spring Dual Mass Flywheel
周向弧形弹簧双质量飞轮设计方法研究
11.
Clinical Use of the Round Tooth Socket Enlargement by Arc Applying in Extraction of Impacted Mandibular Third Molars
冠周弧形增隙法拔除下颌阻生智齿临床分析
12.
Experimental investigation of a solid/arc slot asymmetrical combined casing treatment
实壁/圆弧斜槽周向不对称组合式处理机匣实验
13.
The anniversary of one's birth.
生日某人出生日期的周年纪念日
14.
Does the fluorescent lamp discharge in the form of glow or arc
日光灯气体放电是辉光放电还是弧光放电
15.
Fluorescent is a low pressure mercury-smoke arc discharge lamp.
日光灯是一种低气压的汞蒸气弧光放电灯。
16.
The Research on the Key Problems of Tethyan Arc-basin Tetconic Evolution in Xigaze;
日喀则特提斯弧—盆构造演化关键问题研究
17.
I haven't written in my diary for a week.
我一周没写日记了。
18.
On weekends, holidays and nights,
在周末，假日和晚上，