| 1. | Phosphorus is essential to plant growth .
植物生长需要磷。 |
| 2. | In criticism , it is essential to guard against subjectivism and arbitrariness .
批评要防止主观武断。 |
| 3. | Nitrogen manuring is essential to get a good yield of cut herbage .
为了获得刈割牧草良好的产量，使用氮肥是极为重要的。 |
| 4. | The tunipah development is essential to the growth and prosperity of california .
图尼帕工程对加州的发展和繁荣至关重要。 |
| 5. | Thus for energies in this range it is essential to use relativistic mechanics .
所以，对这样大的能量来说，必须应用相对论力学。 |
| 6. | Many processes that are essential to the chemical industry use heterogeneous catalysts .
很多重要的化学工业过程就是使用多相催化剂的。 |
| 7. | Removal of these residues is essential to obtain maximum stability of the polymer .
要使聚合物具有良好的稳定性，将这些杂质除去是非常重要的。 |
| 8. | Arithmetic is essential to all the other sciences because they could not exist without it .
算术对其他各门科学至为重要，因为没有它别的科学就不能存在。 |
| 9. | We shall see later that gluons are essential to the dynamics of the quarks inside the proton .
后面将会看到，胶子对于质子内夸克的动力学机制来说是必需的。 |
| 10. | If she should ever tell me that you are essential to her perfect happiness, i will give her to you .
倘若她告诉我你是她的幸福美满的要素，我就会把她给你。 |
