6800 Series Deep Groove Ball Bearing
6800 Series Deep Groove Ball Bearing
Thin wall type bearing(thin wall bearings) has realized the extremely thin cross section of the bearing, also has realized the product miniaturization, lightweight,so is also called thin section ball bearings. The diversity of products extends its application scope. Realized the extremely thin cross section of the bearing, also has realized the product miniaturization, lightweight. The diversity of products extends its application scope. Open, ZZ 2RS Thin Deep groove ball bearings are widely used in water pumps, Food processing machinery and high speed machine tools.
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1 Industry package: 200pcs/plastic bag, 2000pcs /carbon , 50 cartons/pallet ,
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6800 Series Deep Groove Ball Bearing,Smooth Thin Wall Bearing,6801 Ball Bearing Hebei Naimei Bearing Co., Ltd. , https://www.nmn-bearing.com
Determine the water absorption curve of C. oleifera seeds Take 2g seeds in a small beaker, add 3 times the volume of the distilled water into the artificial climate chamber at 25°C, and then take out the seeds regularly. Absorb the surface of the seeds with water-absorbing paper to weigh moisture, and then continue to put back. The water in the beaker was absorbed, and the measurement was repeated until the difference between the measured values ​​before and after two times did not exceed 0.05 g, which was repeated three times.
Take the above-mentioned certain amount of extract solution to 10 mL and prepare a solution with a seed mass ratio to solution volume of 0.02, 0.04, 0.06, 0.08, and 0.10 g/mL, and take 3 mL of each into a petri dish in the artificial climate chamber. The double-layer filter paper was used as a germination bed, and 50 seeds of cabbage seeds were placed in each dish for germination test, with 3 mL distilled water and 80% methanol distillate as control, and each treatment was repeated 3 times. The germination rate was measured in an artificial climate chamber at 8000 lx with light intensity for 12 h, darkness for 12 h, and incubation at 25 °C for 48 h. The germination rate was measured with the radicles breaking through the testa of 2 mm, and the radicle length was measured.
The seeds of C. sinensis were absorbed rapidly in the first 3 h, and the water absorption rate was nearly 70% after 3 h. 3 ~ 25h for the seed's slow water absorption period, the seed water absorption increased slowly. Afterwards, the seed water is nearly saturated, and the seed water absorption rate tends to be nearly straight. Through the cultivation and observation of the artificial climate chamber, it was found that although the seed of the old crow's petals is hard and the quality of the leather is high, it has no effect on the absorption of the seeds by suction, the time required for the seeds to saturate the water is short, and the water permeability of the seed coat is good.
2 Tube Package: 10PCS/tube,then put in Carton and Pallet
3 Single Package: 1PC/single box, then put in Carton and Pallet
And also we can pack according to your requirement.
The crow's flap is a medicinal plant of the genus Liliaceae. With the continuous increase of the demand for Guangcao by the Chinese medicine industry, the contradiction between supply and demand is increasingly acute. At present, the light Sagittaria is mainly derived from the wild. The low propagation coefficient found in the artificial climate chamber has become the main obstacle for the standardized cultivation of the crow's lobe. However, under the natural environment conditions, the number of the seedlings of the crow's lobe is less, indicating that there are certain limitations on the seed germination. The artificial climate room made further research on the cultivation of crows and the law of fertilizer requirements, and pointed out that the density and depth of sowing should be increased in the artificial cultivation process, and potassium fertilizer has a significant effect on the growth of crows.