预热处理 meaning in English

preheating treatment
thermal pretreatment

Effect of preheating treatment on properties of wheat straw fiber board
预热处理对麦秆纤维板性能的影响
We select crm without coal as reference ; select semi - dynamic atmosphere to operate machine ; use the method fixing the temperature of hearth and that of sample holders when the analysis begins , which ensures the consistency of heating samples ; adopt the dta curve of " at - t " to analyzing crm heat , which decreases possible influences from the fluctuation of heating velocity ; draw conclusions that crm proportion and granularity influence the analysis little , but not crm moisture and coal species ; advise that there be a warm - up to the crm with much moisture before analysis and a modification to the crm with variable species of coal ; then obtain the feasible operation conditions and operation curve ( together with the curve function )
选用白生料作标样；选用准动态测定气氛；采用恒定炉膛温度( 650 )和固定支持器初始温度( 60 )的方法，确保了样品受热过程的一致性；采用“ t ? ? t (时间) ” dta曲线分析生料热，减少了升温速率的微弱变化对测定结果的可能影响；得出生料配比和细度对差热仪测定结果影响小、生料水分和煤品种影响大的结论，并提出对大水分生料测定前要进行预热处理、对不同品种煤的测定结果要进行修正的建议。最终，得到了差热仪适宜的工况条件和工作曲线(及方程) 。