preheating time meaning in English
预热时间
Examples
- Need no preheating time . rapid cutting time ( only 2 ~ 5 times ) compare with gas cutting
不需预热；跟气割比较，切割时间缩短2 - 5倍。 - A normal co - axis he - ne laser tube with bore length l = 190 mm was used . with pid and self - organised fuzzy control , the frequency error could be confined to a 10 ~ 9 level . in addition , preheating time and anti - interference were within requirements
选用腔长l = 190mm的普通同轴式he一e激光管，采用pid和自组织模糊控制模式可达到10一的稳频精度效果，并满足预热时间和抗干扰要求。 - However , unsatisfactory results were obtained under the following conditions : discharge tube covered with glass cover , thermal dispersion conditions not as effective , thermal expansion of the discharge tube restricted by the co - axis glass cover ( longer preheat time , lower anti - interference )
在放电管外有玻璃罩，散热条件差；放电管温度变形受外玻璃罩约束的同轴式管子上则效果不理想(预热时间较长，抗干扰能力不如前者) 。 - According to the difference of the using characters of buildings , the heating system is divided into two categories , the continuous heating system and the intermittent heating system . to the intermittent heating system , it is essential to estimate accurately the preheat time . overestimation of preheat will cause unnecessary energy wastage whilst underestimation will lead to a loss of comfort conditions at the start of occupancy
对预热时间过分的估计(即tp的估计值大于实际值)会使在工作期未到来前房间的温度已经达到了舒适温度，这将导致燃料的浪费；反之，对预热时间估计不足(即tp的估计值小于实际值)将使在工作期到来时房间的温度还未达到舒适温度，这使人觉得不舒适。