这种类型的污染有时被称为“炭黑”污染。 "refer to'的具体用法如下。 (1)表示“查阅”或“参考”之意。 If you wantto know his telephone number,you may refer to the telephone directory. 如果你想知道他的电话号码，你可以查电话簿。 (2)表示“谈到”或提到”之意。 Please don'trefer to his past again 请别再提他的往事了。 The old soldier referred to his experiences duringthe Long March. 老战士谈到了长征时的一些经历。 (3)表示“适用于”或“涉及”之意。 These books refer to Asian problems. 这些书涉及亚洲问题。 These regulations refer only to children. 这些规矩只适用于儿童。 “refer to.…a5”意为“把…称作”。 He is referred to as a living Lei Feng. 他被称作“活雷锋”。 That man referred to himself as a writer 那个人称自己为作家。 The exhaust from burning fuels in automobiles,homes,and industries is a majorsource of pollution in the air. 汽车、住家及工业燃烧燃料所排出的废气是空气中一个主要的污染来源。这种类型的污染有时被称为“炭黑”污染。 “refer to”的具体用法如下。 （1）表示“查阅”或“参考”之意。 If you want to know his telephone number, you may refer to the telephone directory. 如果你想知道他的电话号码，你可以查电话簿。 （2）表示“谈到”或“提到”之意。 Please don't refer to his past again. 请别再提他的往事了。 The old soldier referred to his experiences during the Long March. 老战士谈到了长征时的一些经历。 （3）表示“适用于”或“涉及”之意。 These books refer to Asian problems. 这些书涉及亚洲问题。 These regulations refer only to children. 这些规矩只适用于儿童。 “refer to ... as ...”意为“把……称作……”。 He is referred to as a living Lei Feng. 他被称作“活雷锋”。 That man referred to himself as a writer. 那个人称自己为作家。 The exhaust from burning fuels in automobiles, homes, and industries is a major source of pollution in the air. 汽车﹑住家及工业燃烧燃料所排出的废气是空气中一个主要的污染来源