联合词组的使用要求《北京农业工程大学学报》编辑部李兴昌地位平等的词语构成的词组叫做联合词组。联合词组中的各项，可以用也可以不用连词来连接。不用连词时，各项间要用顿号隔开。使用联合词组应满足下列要求．一、联合词组申的各项，原则上应是同一类型的词语“同一... The use of joint phrases The “phrase” of the editorial office of “Journal of Beijing Agricultural Engineering University” Li Xingchang phrase of equal status is called the joint phrase. The words in a joint phrase may or may not be connected with conjunctions. Do not use conjunctions, the items separated by a comma. The use of conjunctions should meet the following requirements. First, the terms of the joint phrase, in principle, should be the same type of words "same ...