pitch fraction信息详情
节距分数
fraction───n.分数；部分；小部分；稍微
pitch───n.运动场地；程度；音高；推销行话；倾斜度；沥青；投球；街头摆摊处；颠簸；螺距；v.投掷；投（球）；触地；击高球；重跌；颠簸；使倾斜；确定标准；定音高；投标，推销；搭帐篷；用沥青涂；用石头铺（路）；给（麦芽汁）加酵母
media pitch───媒体推广
complex fraction───n.繁分数；n.[数]繁分数
perfect pitch───n.音高辨别力；完全音高感，绝对音感
impregnating pitch───浸渍剂沥青
pitch diameter───层心直径，（齿轮的）节径，（螺纹的）中径；[机]节圆直径
pitch-dark───adj.漆黑的
partial fraction───部分分数，部分分式；[数]部分分式；[数]部分分数
Pitch controller: to maximize lift as the wind speed changes, a controller can automatically rotate each blade anywhere from a fraction of a degree to multiple degrees per second.───间距控制：为了最大限度地根据风速变化提升发电效率，新型风力发电机上的控制器每秒钟都能够对每一片风叶进行任何角度的调整。
Distillates (coal tar), pitch, pyrene fraction.───馏分(煤焦油)，沥青，芘馏分。
The results show that the presence of durene helps to promote the reaction between pitch molecules and to adjust the distribution of pitch fraction and structure composition.