According to data, aphids may have appeared as early as 280 million years ago in the early Permian, and 160 million years ago, when angiosperms appeared, the species of aphids began to grow
Draw a "contact diagram" and give a good "basic lesson"-CNPC Northeast Chemical Sales Company "grid-based" marketing documentary
Time of Update: 2021-06-10
It is this "contact map" that enables Northeast Chemical Sales Company to timely and accurately control the market, find customers, follow up prices, and maintain market share.
Brain Science: Draw Cognitive Principle Diagrams, Explore "Prescriptions" for Brain Diseases
Time of Update: 2021-03-18
, the Ministry of Science and Technology publicly solicited opinions on the 2020 project application guidelines for major projects of “Brain Science and Brain-like Research” for Science and Technology Innovation 2030, which sounded the clarion call
Two diagrams "get the basic data" of the global farmland
Time of Update: 2021-01-23
“ Arable land is the lifeblood of grain production, and it is of great significance for the international community to ensure food security, regulate food market, cope with global change and promote green agricultural development. Wu
Powder Lice, Horse and Aphids" of the Plant Protection Institute of hunan Academy of Agricultural Sciences, were reviewed
Time of Update: 2020-12-30
and control of vegetable virus disease in Hunan Province harm the actual situation, advanced and reasonable technical indicators, quality indicators to determine reasonable, to promote rapid detection of vegetable virus disease and comprehensive prevention
A Microscopic Model Calculation of the Phase Diagram of Ternary Mixtures of Cholesterol and Saturated and Unsaturated Phospholipids
Time of Update: 2020-12-29
Within this model, coexistence of two liquids in the ternarysystem is intimately tied to such coexistence in the binary cholesterol-saturated phospholipid system.
NEJM: Aphids in the stomach - case report
Time of Update: 2020-12-11
during the examination, a titular echo structure with curly motion was seen inside the stomach cavity (as shown in Figure A).
South Korea recalls Chinese-made aphid peppers
Time of Update: 2020-12-08
CO., LTD) imports and sales of peppers detected the aphids exceeded the standard, ordered it to stop selling and recall the product. the product detected aphids 0.10 mg/kg, in Korea, the standard of aphids in this product should not exceed 0.05
3D structure diagram of mammalian cell nuclear fiber layer in the native environment.
Time of Update: 2020-09-11
up the nuclear fiber layer. nuclear fiber layer protein silk is mainly composed of two proteins: type A nuclear fiber layer protein and type B nuclear fiber layer protein, both in the form of polymers to form a long stem and a spore structure
Chinese scientists analyze the group diagram and mechanism of protein modification of rice plague bacteria glycosylation.
Time of Update: 2020-09-08
participates in the molecular mechanism of plant pathogenic fungal growth and development and pathogenicity, which will provide an important candidate target for the prevention and treatment of rice plague, and also lay a foundation for an in-depth
Health Canada plans to phase out the neo-alkali insecticide aphids.
Time of Update: 2020-08-30
Ontario's regulations limit the amount of new tobacco-alkali pesticides farmers can use in corn and soybean crops.
How to make aphid grass species.
Time of Update: 2020-08-23
treasured wild Chinese herbs (winter worm summer grass can not be artificially cultivated). Today to briefly share with you how to make aphid grass species? 1, to obtain a strong adaptability of the species source, high yield of the species
The response mechanism of parasitic plants after aphids in the south were attacked by aphids.
Time of Update: 2020-08-10
are conducted in the parasitic system. the aphids first induced the changes of plant hormones (JA and SA) and then induced the regulation of transcription factors, which were reflected in the changes in the transcription expression of specific
How to use eucalyptus oil to control vegetable aphid
Time of Update: 2020-04-03
2015-08-04 classification: efficacy and effect one person commented that eucalyptus oil is widely used as food additive, and other countries have registered it as hygienic insecticide, which is now developed and used as pesticide in China.
Coating process: construction procedure of coating in the diagram
Time of Update: 2020-04-03
Core tip: construction procedure of middle coat Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction
Structure analysis diagram of spring group elastic valve seat
Time of Update: 2014-10-30
Spring group elastic valve seat is a kind of valve sealing structure which evenly arranges a group of compression springs on the cross-section circumference of the valve fluid
Data diagram of electric heater
Time of Update: 2010-04-04
1. Selection of heater power density under forced convection (air, ambient temperature 20 ℃) outlet temperature ℃ Outlet flow rate M / min 2.