例句與造句

1. It includes a variable star with a pulsation period of around 8 hours.
2. This is a Delta Scuti variable star with a pulsation period of 0.94 hours.
3. All of the pulsation periods are in the range of 4.03 4.59 hours.
4. This discovery allows one to know the true luminosity of a Cepheid by simply observing its pulsation period.
5. The identified pulsation periods are 32.3, 38.5, and 44.9 days.
6. It's difficult to find pulsation period in a sentence. 用pulsation period造句挺難的
7. Many R CrB variables show small amplitude pulsations and W Men has a pulsation period of approximate 67 days.
8. It is catalogued as an irregular variable star, but a number of possible pulsation periods have been detected.
9. In 1994 it was discovered that 35 Aquilae is a variable star with a pulsation period of just 30 minutes.
10. There are variations in the light curve apparently due to multiple pulsation periods rather than inherent instabilities in the pulsation.
11. Like all Cepheid variables, Type IIs exhibit a pulsation period, making them useful as standard candles for establishing distances where little other data is available
12. Many semiregular variables show long secondary periods around ten times the main pulsation period, with amplitudes of a few tenths of a magnitude at visual wavelengths.
13. Epsilon Persei A is a Beta Cephei variable star with a primary pulsation period of 0.1603 days, or 6.24 cycles per day.
14. It is an irregular variable with seven measured pulsation periods ranging from 22.4 to 162.6 days, and amplitudes ranging up to 0 . m 022.
15. Later studies showed that the period was spurious and several very short pulsation periods were found : 11.6, 12.0, and 13.4 minutes.
16. The X-ray luminosity is about 1 ?10 29 erg / s and the emission varies with the pulsation period, suggesting a connection with the pulsation process.
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