筛孔直径

结果表明：对于相同筛孔直径，随着含水率的增大，负荷输入功率基本不变，吨料电耗增加，生产率降低；

The experimental result was that load input power changed less and consumption of electricity per ton increased and productivity decreased as moisture rates added under the same sieve pore diameter .

综合排名表明，人工锤打脱粒法和木刀脱粒机脱粒法（筛孔直径0.8cm）同为第一，但人工锤打脱粒种子数量偏低，费时费力，经济效益不高。

Comprehensive scoring indicated that both hand threshing and wood knife threshing were the first , but hand threshing gave lower seed number and lower economic profit .

在本实验的五种筛孔直径下，压力梯度的实测值与按Poiseuille公式计算的理论值之比约为2&4。

The ratios of the pressure gradients measured in the test to that predicted by Poiseuille equation are about 2 & 4 for the five kinds of diame - ters of sieve pore . Additionally , a simulating test of the pores being partly plugged has been performed .

随着筛孔直径的减小，压力梯度大大增加。

It will increase sharply with the decrease of the diameter of sieve pore .

并评述不同计算方法对筛孔直径、开孔率、过孔速度等进行的选择，解决了目前国内液态烃脱硫抽提塔塔顶带液和塔径选用过大等问题。

, in differ-ent calculation methods and solves the problems of liquid-carrying at the top of extraction column for liquid hydrocarbon desulfurization and the column diameter too big at present in our country .

筛状囊上皮孔主要存在于1.5月龄大鼠的松果体囊上皮，是由许多密集排列的囊上皮细胞周边部细胞膜凹陷形成的圆形孔洞，筛孔直径200~500nm；

Cribriform epithelial stomata were seen mostly in 1.5-month old rats . They were composed of many round pores which pierced through the full-thickness of the periphery of the capsule endothelium . The pores were dense and ranged from 200-500 nm in diameter ;

对不同含水率、筛孔直径、锤片数量下玉米秸秆粉碎机的吨料电耗、锤片厚度及度电产量等性能参数进行了试验研究。

Studied smashing characteristic of corn straw , including mainly performance parameter of pulverizer such as consumption of electricity per ton , hammer patch thick and output per kW · h under the condition of different moisture rates , sieve pore diameter and hammer number .

在同一测试条件下对普通筛孔和上锥形筛孔的气泡直径测试，得出筛孔结构的变化，并没有带来气泡直径的较大变化，也没改变气、液接触界面的大小。

After measuring the bubble diameters of common sieve trays and upper taper sieve trays , it is found that perforation structure has little effect on the gas bubble diameter and gas-liquid contacting area .