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- Secondary chemical erosion intergranular pores are the main pore type, the grain size of rock is small, the sorting is middle or bad, and dot-line contact is the major form. 该储层孔隙类型以次生溶蚀粒间孔隙为主，岩石粒度较细、分选中-差、以点-线接触为主；
- 1.Chemical industry: sodium carbonate (the production of hydrochloric acid, hypo-fluoric acid and secondary chemicals); 化学工业：碳酸钠化工业（盐酸、次氟酸、二次化学品的生产）；
- It won't hurt you, but chemicals will. 它不会伤害你，但是农药会。
- The plant has recalled lids which leached out dangerous chemicals. 那家工厂回收了浸滤危险化学物质的盖子。
- Her age is of secondary interest. 她的年龄不太重要。
- Noxious chemicals are found in the river water. 河水里发现了有毒化学物品。
- Chemicals that produce a noxious vapor when mixed. 化学物质混合后会放出有毒气体
- 10.Chemical industry: sodium carbonate (the production of hydrochloric acid, hypo-fluoric acid and secondary chemicals); 化学工业：碳酸钠化工业（盐酸、次氟酸、二次化学品的生产）；
- A place where drugs and chemicals are manufactured. 药厂用于生产药品和化学物质的地方
- In secondary school, children get more advanced knowledge. 在中学，孩子获得更深一些的知识。
- A secondary matter; a side issue. 次要的第二位的事; 较次要的问题
- He demonstrated the principles with chemicals and test tubes. 他借助化学药品和试管讲解了这些原理。
- A secondary mine passageway between two main shafts or tunnels. 次要矿山甬道矿井中连接两条大隧道的小巷道
- Mr. Chen used no (didn't use any) chemicals on his fruit. 陈先生的水果不使用农药。
- The government introduced universal secondary education years ago. 几年前，政府就倡导普及中等教育。
- Our aim is that all children complete secondary education. 我们的宗旨是让所有孩子完成中等教育。
- Many older people still believe that women's careers are secondary. 许多年岁大一点的人仍然认为妇女的职业生涯并不那么重要。
- Chemicals in the body break our food down into useful substances. 人体中的化学元素把食物分解成有用的物质。
- All other considerations are secondary to his safety. 现在首先要考虑的是他的安全，其他事都是次要的。
- In secondary school, students get more advanced knowledge. 在中学里，学生获得更深一些的知识。
