Mechanically actuated combustion air flaps ; safety requirements , testing and marking 機(jī)械操作的燃燒空氣風(fēng)門片.安全性要求.試驗(yàn)和標(biāo)記
Safety of machinery - human physical performance - recommended force limits for machinery operation 機(jī)械安全.人體特性.機(jī)械操作的推薦使用的力極限值
Improving the biological scores of the high school students ; finally , according to results above the research , the author put forward some feasible suggestions and thoughts : 1 . it is a step by step adptable course when to implement anyway the new theory of teaching ; 2 . implementing of anyway the new educational theory should be supported by students , teachers , parents , and people of the whole society ; 3 . teachers should genuinely reflect teaching in order to regulate it through theory and practice ; 4 . in the course of inqury teaching , students should genuinely reflect self - consciousness ; 5 實(shí)施探究教學(xué)策略的確提高了學(xué)生的學(xué)習(xí)主動(dòng)性,增強(qiáng)了學(xué)生的主體意識(shí)。分析原因,主要有以下四點(diǎn): )充分、自主的學(xué)習(xí)活動(dòng),增強(qiáng)了學(xué)生的主體地位,克服了傳統(tǒng)教學(xué)中教師事先安排好的,形式單一,時(shí)間短暫的,大多是外部機(jī)械操作的活動(dòng),體現(xiàn)了學(xué)生生物學(xué)習(xí)的主動(dòng)性和自主性,也體現(xiàn)了學(xué)生活動(dòng)的自主探究過程、交流過程、反思過程和整理過程。