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Cepheid variable stars – a class of stars named in honor of Delta Cephei – serve as cosmic yardsticks, enabling astronomers to measure the distances to faraway galaxies.

仙王座δ——一组为纪念国王而命名的星座，充当宇宙中的尺度，使天文学家们测量我们距星系外的距离成为可能。

Cepheid variable stars – a class of stars named in honor of Delta Cephei – serve as cosmic yardsticks, enabling astronomers to measure the distances to faraway galaxies.

造父变星——以无尚荣誉的Delta Cephei——充当宇宙的标尺，使得天文学家可以测量更为遥远银河星系。

Cepheid variable stars – a class of stars named in honor of Delta Cephei – serve as cosmic yardsticks, enabling astronomers to measure the distances to faraway galaxies.

造父变星——是一类根据仙王座δ起名的星星——被作为宇宙尺子，使天文学家能够用它们来测量到遥远星系的距离。

Cepheid variable stars – a class of stars named in honor of Delta Cephei – serve as cosmic yardsticks, enabling astronomers to measure the distances to faraway galaxies.

造父变星，以仙王座δ为代表的群星，就像宇宙的尺度，可以让宇航员用来测量距银河的距离。戴博莱。白瑞德著

Cepheid variable stars – a class of stars named in honor of Delta Cephei – serve as cosmic yardsticks, enabling astronomers to measure the distances to faraway galaxies.

造父变星——为了纪念仙王座δ而命名的恒星——作为天文学家们测量遥远星系的距离的宇宙尺度。

First of a class of two heavy ships, with Tirpitz being the second, she was commissioned in August 1940 and spent the rest of that year running trials and continuing her outfitting.

是两艘重型战舰，提尔皮茨号是俾斯麦级的第二艘战舰，她在1940年8月被任命并且花费了那年的其余时间进行试验和试验她的装备。1941年第一个月主要在波罗的海。

First of a class of two heavy ships, with Tirpitz being the second, she was commissioned in August 1940 and spent the rest of that year running trials and continuing her outfitting. The first months of 1941 were largely devoted to training operations in the Baltic sea.

是两艘重型战舰，提尔皮茨号是俾斯麦级的第二艘战舰，她在1940年8月被任命并且花费了那年的其余时间进行试验和试验她的装备。1941年第一个月主要在波罗的海。

Croce and his colleagues have identified a class of genes called microRNA.

他和同事鉴定了一种新的基因种类并命为 micro-RNA 。

This touches upon the original reason I was invited here today. In 1986, I adopted a class of Bedford Stuyvesant 6th graders and promised them if they graduated from high school, I would pay for their college.

这其实是我今天应邀来这里的根本原因。1986年，我认领了Bedford Stuyvesant 6年级的一个班，向他们承诺，如果他们能够高中毕业，我将供他们上大学。

For a class of the functions which contains singular points, the Romberg method is ineffective because of the singularities.

摘要对于含奇点函数的积分问题，由于奇点的存在，使得Richarson外推的条件不成立，致使Romberg算法加速效果很差。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷