Unreasonable fertilization is usually caused by the unreasonable amount of fertilization, fertilization period, and fertilization methods. Common ones are:
1, fertilization shallow or surface application. Fertilizers are volatile, lost or difficult to reach the roots of crops, whi…
1, fertilization shallow or surface application. Fertilizers are volatile, lost or difficult to reach the roots of crops, whi…
Based on the analysis of the function and structural characteristics of the aircraft hard mechanical control system components and the establishment of the physical modeling and parametric model of the aircraft, the UG secondary development tool UG/Open programming is used to edit the geometric…
Not only that, Solid Edge also offers many efficient and unique tools. The web release allows you to publish the product online with a few clicks of the mouse; the engineering manual integrates design, calculation and styling to make standard part design easy; various monitoring tools make …
We are commonly referred to as insulated gloves, high temperature gloves, and hot gloves. Thermal gloves. High-temperature gloves, heat-resistant gloves, high-temperature gloves, heat-resistant gloves, heat-resistant gloves is actually the use of gloves in contact with hi…
At present, the paper machine dryer Department of steam system is divided into three sections of steam, heat pump heating two basic types. The three sections of the steam belongs to the passive steam series heating system is the new steam with the control valve decompression dryer cylinder pr…
Figure 1 cylindrical thread cutting
The basic thread cutting method is shown in Figure 1.
Programming format G32 X(U)~ Z(W)~ F~
In the formula:
X(U), Z(…
September turnover increased 43 times year-on-year
Speculative funds will always only flow to higher yields. All indications are that starting from September, most of the speculative funds have gradually withdrawn from the copper market and transferred to aluminum. According to mar…
Copper: The trend was calm at the beginning of the week, with a high of $3,250. It is expected that the market will maintain trading range. Aluminium: In spite of the narrow range fluctuations throughout the day, the trading volume remains reasonable, and speculative trading in the hands of the…
Recently, Yang Daojun, a farmer from Liuchengzhuang Village, Zhangguantun Township, Zhangzhou City, has successfully developed a fully automatic cotton shelling separator, which solves the troubles of laborious and manual stripping of cotton farmers, and provides convenient cotton …
FORMULACTION of France cooperated with Octel of the United Kingdom and recently developed a rapid analyzer for heavy oil stability, which is fully compliant with ASTM D7061-04. The new analyzer can complete the determination of asphaltene stability in heavy oil within 15 minutes, a…
At the “2006 Senior Aluminum Application Symposium†held on September 21-22, the chairman of the China Electronic Component Industry Association, Chen Zhongyi, pointed out in his report titled “China's Aluminum Electrolytic Capacitor Production and Demand for Aluminum 
Artemisinin is a sesquiterpenoid compound isolated from barley (Artemisia annua). Artemisinin and its analogues have antifeedant activity against cabbage butterfly and Plutella xylostella larvae.
Artemisinin is an active compound isolated from the vegetable Artemisia selengensis. …
Artemisinin is an active compound isolated from the vegetable Artemisia selengensis. …