| 1. | Look , the paste has crusted on your sleeve .
瞧，浆糊都嘎巴在你袖子上了。 |
| 2. | Strains in the earth's crust seem to pile up .
地壳的应力似乎一直在积聚着。 |
| 3. | There was salt crusted everywhere .
到处都结着盐皮。 |
| 4. | The snow has crusted over .
雪在地上结成冰壳。 |
| 5. | Sodium is the sixth most abundant element in the earth's crust .
钠是地表中含量第6丰富的元素。 |
| 6. | They must have appeared first as crusts and clinkers .
它们最初必然象面包的外皮和熔炉里的渣块。 |
| 7. | Stratigraphy studies the sequence of the rocks in the earth's crust .
地层学研究地壳中岩石的层序。 |
| 8. | The crust seals the soil and prevents the evaporation of water .
这层表皮把土壤封闭，防止水份蒸发。 |
| 9. | They cut straight downwards through the hard, brush covered crust .
他们穿透长着灌木的坚实的硬土一直向下掘。 |
| 10. | Repeat these steps until the suture line is free of blood and crusts .
重复以上操作直到缝合处无血和硬痂为止。 |
