1) Open or close percentage of stoma
气孔开张率
1.
It increased the relative water content and the water potential, reduced the relative conductivity and the open or close percentage of stoma.
在干旱胁迫条件下 ,经 0~ 10 0 0mg/L三唑酮溶液处理的玉米幼苗叶片中 ,相对含水量和水势均增加 ,细胞的相对电导率降低 ,气孔开张率降低 ,幼苗植株矮化 ,但地上部鲜重增
2) stomatic opening extent
气孔开张度
1.
The daffy changing of the stomatic opening extent of the leaves,which lie in the upper,middle and lower part of the crown of trees,and its relationship with the fight,temperature and humidity were analyzed using printing method.
结果表明,核桃气孔开张度的日变化呈双峰曲线,气孔存在不均匀关闭现象,核桃叶片平均气孔密度为78个/mm~2。
3) openporosity
开口气孔率
4) opening rate of airway
导气管开孔率
1.
The experiment designs the structure of Aged-Refuse-Based Bioreactor for semi-aerobic and handles leachate as a processing object in order to research the treament capability of the semi-aerobic landfilling Aged-Refuse-Based Bioreactor, in different landfilling density, opening rate of airway and landfilling depth.
室内模拟实验研究结果表明:(1)当实验所选密度分别为850 kg/m~3、1000kg/m~3、1150kg/m~3时,各污染物的去除率随密度的增大略有减小,但减小都在1%左右,对整个出水效果影响不明显,所以本次实验过程中密度的变化对渗滤液处理效果影响不显著;(2)导气管开孔率分别取6。
5) critical fraction of open area for distributing gases
布气临界开孔率
6) holes area ratio
开孔率
1.
The optimal holes area ratio of draft tube was 16.
研究发现导流筒的安装会降低功耗,提高气含率;导流筒的开孔率以16。
2.
the lower impeller which is used as upward axial impeller is better than the one used as downward axial impeller in the experiment; the gas hold-up of the reactor with two-stage draft tubes is the best, and the holes area ratio of upper draft tube should be 6.
研究芯现,下桨排出流向上的气含率比排出流向下时的高;反应器中双层导流筒结构时的气含率结果最优,上层导流筒的开孔率应为6。
补充资料:焦炭气孔率
焦炭气孔率
porosity of coke
Jiaotan qikongl公焦炭气孔率(porosity of eoke)块焦的气孔体积与焦块体积之比。它分为总气孔率和显气孔率两种。总气孔率为块焦的开气孔与闭气孔体积之和与总体积的比率,显气孔率系块焦的开气孔与总体积的比率,均以百分数表示。块焦中气孔的大部分是互相贯通并通向块焦外表面的气孔,称为开气孔,少部分为封闭气孔。大多数焦炭的气孔率(总气孔率)波动范围为41一56%。焦炭总气孔率用焦炭真密度和焦炭视密度计算求得。焦炭总气孔率一导x‘00,%式中p为焦炭真密度;P^为焦炭视密度。焦炭显气孔率的测定方法通常有抽真空法和水煮沸法两种.(1)抽真空法简称抽气法。即在真空的条件下将焦炭孔隙内的空气抽出,然后在大气压力作用下使水进入焦炭的孔隙中。〔2)水煮沸法是将焦炭置于水中使水渗入焦炭的孔隙中。上述两种方法在用水充满焦块孔隙以后的操作是相同的,即称出已充满水的块焦质量,然后浸入水中再称出其质量,结果按下式计算: 显气孔率一箫器划。“,%式中m,为干焦质量,g;m:为水饱和后的焦样在空气中的质量,g;扒:为水饱和后的焦样在水中的质量,g。测定时必须选取一定数量有足够代表性的焦块,并且要严格按规定条件操作。水煮沸法测出的显气孔率一般比抽真空法测定值小1一2%。 (陈明岳崔秀文)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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