| 1. | All are built from numberless atoms, the majority of them united into molecules .
所有的都是由不计其数的原子构成，其中大多数原子结合成为分子。 |
| 2. | Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water
两个氢原子和一个氧原子结合而成一个水分子。 |
| 3. | Combining two atoms of hydrogen with one of oxygen ， you will get a molecule of water
如果两个氢原子与一个氧原子结合，就可以得到一个水分子。 |
| 4. | Considering when most of different atoms combine together , the covalent bond and the electrovalent bond are concomitant
考虑到大多数异类原子结合是采取共价结合与离子结合之间的过渡形式。 |
| 5. | These ions implant themselves deep down , relatively speaking , where they combine with atoms in the wafer and form a layer of silicon dioxide
相较之下，这些离子会深深植入晶圆中，它们在那里与晶圆的原子结合，并形成一层二氧化矽。 |
| 6. | The number of protons , which are positively charged particles , determines the chemical properties of the atom , e . g . whether it will bond with other atoms to form molecules
组成，带正电质子的数目，决定了该原子的化学特性，例如它会否和其他原子结合成分子等。 |
| 7. | Carbonyl groups readily attach themselves to nickel or cobalt atoms , but not so strongly that they cannot link to other molecules and jump ship to form larger molecules
羰基很容易与镍或钴原子结合，可是键结并不强，因此它还是可以与其他分子结合，甚至跳船形成更大的分子。 |
| 8. | The electrons are transferred along the chain to a carrier molecule ( coenzyme q ) , and then in sequence to a series of cytochromes , finally acting with the enzyme cytochrome oxidase to reduce an oxygen atom , which combines with two h + ions to form water
电子沿呼吸链传递到载体分子? ?辅酶q上，然后依次经过一系列细胞色素分子的传递，最后与细胞色素氧化酶反应，氧原子结合两个氢形成水从而被还原。 |
| 9. | All cancer cells undergo rapid metabolism , which means that they need large quantities of vitamin b12 to flourish . the mayo clinic researchers have found that if vitamin b12 is combined with radioactive atoms and then injected into the body , a cat scan reveals the different radioactive levels of the cells
他们发现，如果将维他命b12先和放射性原子结合，再将此带有放射性原子的维他命b12注射到怀疑患有癌症之病患，再以类似电脑断层扫描的方法检查细胞放射性之含量高低，便可准确发现其癌瘤的位置。 |
