The so-called "Thousands of people try to eat genetically modified rice" is to use "genetically modified rice" as a sushi for volunteers to taste. An academician named Chen Junshi leads a street theater director, a peasant officer and some reporters help the voluntary collection of 36 volunteers in advance. Taste the GM rice, attracted people from all walks of life to stay onlookers. The report said that the original intention of organizing "tasting" activities was to disseminate scientific thinking and was not of experimental significance in itself. The farce is staged in the country for more than two months. There are less than a thousand brave volunteer tasting participants, but most of them may be genetically modified researchers, participants, or stakeholders. (Xinhua, August 13)
It is worth noting that the author of this paper is the researcher of the Institute of Crop Research of the Chinese Academy of Agricultural Sciences, and Pei Ya points the criticism directly to the academician Chen Junshi, the Agricultural Safety Association, and Huazhong Agricultural University. In particular, it was pointed out that two genetically modified insect-resistant rice varieties, Huahui 1 and Bt Shanyou 63, introduced by Zhang Jihe, a genetically modified philosopher, were among the opposition of the people across the country. In 2009, they were sneaky and unlawfully passed the safety assessment by the “National Agricultural Safety Associationâ€. . Seeing that the "security certificate" is about to expire, the farce of street-tested genetically modified organisms will naturally be deduced. This move is nothing more than for the commercialization of genetically modified rice. Yan Ya’s appeal: Let the people who are so lacking in scientific literacy and who are in violation of laws and disciplines scold nonsense on the streets. What role does he have to look for in the interest chain?
To make science more scientific and to make the truth more clear, in the Chinese market, it seems that no one wants to make clear about this thing. Just as Diao questions, some experts survive in the "interests" chain. This is a horrible and terrible thing. The truth will not only be explained, but will be buried deeply, and even turned black and white. There are no problems with genetically modified rice, and it is not the conscience of one or two specialists. It is not only a question of “scientific,†but it is about the basic survival of ordinary people. The "taste of GM rice" farce has been staged in the country more than once, but the real participants are always a few people and they are in an illegal process. After reading Yu Ya’s article, illegal food such as GM rice can be concluded.
Regarding the controversy over genetically modified foods, there is no substantial evidence on both sides. However, the arguments of the opposing parties seem to be more true. Is it harmful to the human body? We cannot always eat it and we have problems. Only after we prove it all do we prove who is right or wrong. Science cannot be ambiguous, and GM promoters are obviously blind to science. Regarding genetically modified foods, some people still have a rhetoric, which is to use the United States as an example. "A large number of genetically modified organisms in the United States" is also an excuse for promotion by some people. However, the author once again proves that this is "out of context", and even worse, nonsense. U.S. genetically modified organisms are used in large quantities and do not directly enter the population's mouth. Instead, they are used for industrial production. In contrast, China's genetically modified organisms require "whole meat and meat to pass through the intestines." Several experts do not educate people to "try to eat"?
The netizen said, “Don’t dare to eat rice, can people eat it to ensure that there are no accidents? Are you responsible for eating GM rice?†Netizens’ questions are scientific, bugs cannot be eaten, and people can’t eat. This is not science? Experts are not experts, are "bricks"; Professors are not professors, are "beasts" in the public opinion, what kind of reflection we should do? Not let the people point to the nose, you are a traitor? The lie and farce of such a catastrophe and country must be exposed in a timely manner. (Star Online User Zhou Jingguo) This article represents only the author's personal point of view
Set screw is also called head screw and positioning screw. The utility model is a screw specially used for fixing the relative position of machine parts. Type: square flange end set Bolt, GB / t821-1988 square chamfered end set screw, GB / t85-1988 square long cylindrical end set screw, inner square head set screw, etc.
Related categories
Hexagon socket set screw, hexagon flat set screw, hexagon cylindrical set screw.
The selection of common set Screws is generally used to fix the relative position of two parts with little force. The axial and circumferential positioning of common sleeve like parts on the shaft. There are many kinds of set screws. The common ones are as follows: according to the end part, there are conical end, flat end, concave end, oblong cylinder head, etc;
According to the head part: slotted, hexagon socket, square head, etc. Tapered end screws and concave end screws with sharp ends can be used to directly top the parts, and the concave end is more reliable and can bear greater force; Taper end screws without sharp points must be drilled in the parts. The flat end is used to top the tight plane, which does not damage the parts, but bears limited load.
Slotted screws have small tightening force and are often easy to screw off. Generally, they prefer hexagon socket head; The tightening force of square head is the largest, but it can not be embedded in parts, and its use is limited. In order to prevent loosening and withdrawal of threaded parts, a set screw can be drilled at the cross seam. The long cylindrical head screw at the top end is used in the keyway of the shaft to lock and prevent circumferential rotation. It can also be used in general unimportant occasions when the key slides in the keyway of the shaft.
Set Screws,Allen Nose Set Screw,Slotted Head Set Screw,Hexagon Socket Grub Screw
Suzhou Gubao Screws Co.,Ltd. , https://www.hongyiscrew.com