Soil temperature and temperature have an effect on the stomatal conductance of leaves, but stomatal conductance has different responses to changes in soil temperature and temperature. The stomatal conductance at different temperatures responds differently to soil temperature. Under the condition of lower or higher air temperature, the change of stomatal conductance is smaller when the soil temperature changes. j In the research experiment, the combined use of soil temperature and humidity recorders was used to determine and analyze: When the temperature was at the appropriate temperature for photosynthesis, the soil temperature was changed from the low-increased leaf stomata to the open and then closed. The response of stomatal conductance to temperature at different soil temperatures is also different.

When the soil temperature measured by the soil temperature and humidity recorder was lower or higher at 10°C or 25°C, the transpiration rate of the leaf increased gradually with increasing temperature, and the leaf transpiration rate was positively correlated with the temperature, and the correlation coefficients were 0.868 (P). <0.05), 0.881 (P<0.01). In the temperature range of 10°C to 35°C, the response of leaf transpiration rate to air temperature varies greatly due to different soil temperatures. When the soil temperature is 15°C or 20°C, the leaf transpiration rate will rise after the temperature rises to 20°C or 25°C. If the temperature continues to increase, the transpiration rate will decrease. When the temperature is 10°C~30°C, the soil temperature will rise from 10°C. The transpiration rate of leaves increased to 25°C with a "unimodal" change, and high or low soil temperature inhibited the transpiration of the leaves. For different temperatures, the height of the “peak” of the transpiration rate of the leaves is different from the soil temperature at which “peaks” appear. The soil temperature has a significant effect on the transpiration rate of the leaf. The increase of soil temperature causes the transpiration rate of the leaf to increase or decrease.

When the leaves are in lower or higher soil conditions, the change of stomatal conductance is small when the temperature changes, and the stomata open slowly with increasing temperature. At the suitable soil temperature for photosynthesis, stomata first open rapidly when the temperature rises, and quickly closes after exceeding a certain temperature point. When the ambient temperature of the leaves reached 35°C, the transpiration rate varied sharply with the soil temperature. When the soil temperature and humidity recorder was measuring the soil temperature at 15°C, the transpiration rate appeared low; at the soil temperature of 20°C, the transpiration rate peaked.

Aluminum Casting Machined Parts

Aluminum Casting Machined Parts

We will consider the follow-up process machining from Aluminum Casting Machined Parts design to save you the cost of optimal processing program to achieve the most accurate, fastest processing products.


Aluminum Casting Machined Parts


Used in a variety of needs the combination of aluminum die-casting parts or high precision Aluminum Casting Machined Parts, after the processed crude embryo parts from the original aluminum castings can be achieved with a certain precision for the assembly parts, CNC machining to be completed by a single part more complex processing needs in the same center standards, once completed the project of drilling, tapping, cutting, milling plane, excluding the incidence of human error, and to quantify the jobs at the fastest speed to achieve economies of scale and efficiency, and assured the parts assembly precision requirements and other products with movement and life.



Aluminum Casting Machined Parts mainly two categories of manual and CNC machining. Manual machining machinist manual milling machines, lathes, drilling and sawing machinery and equipment to achieve a variety of materials processing methods. Manual processing for small quantities, and simple production of parts. CNC machining (CNC) the mechanical workers use CNC equipment for processing, CNC equipment including machining centers, milling centers, EDM wire cutting equipment, thread cutting machines and other. The vast majority of the machining workshop with CNC machining technology.



Through programming, parts in the position coordinates of the Cartesian coordinate system (X, Y, Z) is converted into a programming language, a CNC controller of the CNC machine tool to control the numerical control axes of the machine through the identification and interpretation program language, automatically require the removal of material, to thereby obtain the finished parts. CNC machining parts continuous, suitable for high-volume, complex shaped parts.

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