| 1. | Irrigation is needed to make crops grow in dry regions .
干旱地区需要灌溉才能使作物生长。 |
| 2. | In dry areas an organic sheet may be helpful and improve survival .
在干旱地区用有机质纸张可能有助，能提高成活率。 |
| 3. | Figure 4 depicts character convergence in different species using an example from an arid region .
图4用干旱地区的一个例子描绘了不同种的性状趋向性。 |
| 4. | In more arid area, man probably watched wild horses, wolves, and other animals dig for water and followed their example .
在较干旱地区，人类大概是看到野马、狼和其它动物发掘地下水，从而受到启发而学习它们的作法。 |
| 5. | Irrigation is needed to make crops grow in dry areas
要使庄稼在干旱地区生长就需灌溉。 |
| 6. | Trial of high quality herbage introduction in arid area
干旱地区优良牧草引种种植试验的研究 |
| 7. | Study and application of semiarid area water bearing capacity
半干旱地区水资源承载力研究及应用 |
| 8. | Agricultural research in the arid areas
干旱地区农业研究 |
| 9. | Experimental study on the condensation water in arid area , northwestern china
西北干旱地区凝结水试验研究 |
| 10. | Cacti live in dry regions
仙人掌生长在干旱地区。 |
