A test was made among 296 radom sampled backbone teachers in middle and primary schools by adopting (SCL-90) mental symptom self-evaluation list.
采用(SCL—90)精神症状自评量表对随机抽取的296名中小学骨干教师进行测试。
Plywood weather-resistant test of radom resin sample showed that the MUF resin can replace the PF resin for plywood production.
抽样做胶合板耐候性试验表明，MUF树脂可取代酚醛树脂。
Plywood weather-resistant test of radom resin sample showed that the MUF resin can replace the PF resin for plywood production.
抽样做胶合板耐候性试验表明，MUF树脂可取代酚醛树脂。
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