oxygen 16造句

例句与造句

1. Air, soil and water contain mostly oxygen 16 ( 16 O ).
2. Because oxygen 16 is lighter, water molecules that contain it evaporate more readily.
3. Water contains both oxygen 16, which is common, and the heavier isotope oxygen 18.
4. Jahren's analysis of the wood suggests that the water contained almost exclusively oxygen 16.
5. Further studies were carried out with Oxygen 16 and Iron 56, and these experiments also showed the same short tracks.
6. It's difficult to find oxygen 16 in a sentence. 用oxygen 16造句挺难的
7. In NASA's meteorite, Leshin found that the ratio of oxygen 18 to oxygen 16 varied wildly between different carbonate globules.
8. Second, the researchers examined the ratio of oxygen 18 _ a heavy oxygen isotope _ to ordinary oxygen 16 in crustacean and snail shells in the Lake Chichancanab sediments.
9. Oxygen 18 ( 18 O ) occurs in approximately one oxygen atom in every five hundred and is a bit heavier than oxygen 16, as it has two extra neutrons.
10. Three weeks after NASA officials first expressed concerns that the oxygen problems could force the crew off the space station later this year, the generator recently has churned out oxygen 16 hours a day.
11. Hodell's group found that the ratio of oxygen 18 to oxygen 16 in the Lake Chichancanab sediments was greatest, indicating that the climate was driest, between 800 and 1000 A . D.
12. "This idea is compelling because it would supply water that is rich in oxygen 16 and supply warm air to this very northern region, " she adds _ warm enough, in fact, to nurture a forest.