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我们于1990年2月对东北地区部分人员的局部耐寒能力进行了调查,现将结果简报如下。(一)对象和方法1.对象:选取男性东北籍50人,分为干部(30～35岁)、学生(16～18岁)及战士(18～20岁)三组。
We conducted a survey on the local cold tolerance of some of the northeastern regions in February 1990 and present the results as follows. (I) Subjects and Methods 1. Subjects: 50 men from the northeast of China were selected and divided into three groups: cadres (aged 30-35), students (aged 16-18) and soldiers (aged 18-20).