Some vegetables contain substances that affect human health and are a type of “toxin†that needs to be managed. Such as spinach, bamboo shoots, garlic, onions, white rice, soybeans, etc., all contain more oxalic acid. Oxalic acid deodorization affects the taste, but more importantly, it can combine with the calcium ions in the food to form insoluble calcium oxalate, so that the calcium in the food can not be absorbed by the body. At the same time, oxalate also hinder the absorption of iron in food, long-term consumption of vegetables containing high oxalic acid, in addition to causing calcium deficiency, anemia, but also may produce kidney stones. If these vegetables are boiled with tofu, eggs, and animal livers, calcium and iron in these foods will form insoluble calcium and iron salts that cannot be absorbed by the body. Therefore, it is best to scald with boiling water before cooking, so that most of the oxalic acid can be removed. In addition, some vegetables also contain toxic substances, food poisoning can occur after eating. Such as lentils, green beans, etc. contain soap, bean toxins and red cell lectin, green potatoes, sprouted potatoes contain solanine, fresh soya bean flowers contain chlorhydrazine, pickled side dishes contain nitrite, moldy peanuts Contains aflatoxins, almonds contain bitter almonds, hydrogen cyanide, etc. If these toxic foods are eaten, light persons may experience dizziness, vomiting, diarrhoea, severe poisoning, cancer, or even life-threatening. Therefore, special attention should be paid to cooking. note. During the cultivation of vegetables, nitrates, pesticide residues, parasite eggs, and various pathogens may be “mixed in†vegetables due to various factors such as soil, chemical fertilizers, and pesticides. Therefore, on the one hand, we must not blindly pursue fashion and pursue raw vegetables. On the other hand, these problems are actually not difficult to solve. They will not “talk about the discoloration of poisons†and simply do not eat. As long as you understand the “spiritliness†of vegetables, buy fresh vegetables, clean them carefully before cooking, and cook as much as possible to ensure that “poisonous vegetables†stay away from you and your health accompanies you.
Roundness Tester
Roundness tester is a length measuring tool for measuring roundness using the rotary axis method. The roundness meter is a measuring tool for measuring the roundness error of the workpiece using the rotary axis method. Roundness tester is divided into two types: sensor rotary type and workbench rotary type. During measurement, the measured part is installed concentrically with the precision shaft system, and the precision shaft is attached with an inductive length sensor or a workbench for precise circular motion. It is composed of sensor, amplifier, filter and output device of the instrument. If the instrument is equipped with a computer, the computer is also included in the system.Roundness Tester
The principle of the roundness meter is the same as that of the coordinate measuring machine. In fact, its working principle is very simple. The coordinate measuring machine is a point acquisition tool. Its principle is to collect points first, and then form a line from points, and then form a three-dimensional model from lines. CMM is a kind of measuring equipment that has a guiding mechanism, a length measuring element, a digital display device in three mutually perpendicular directions, and a worktable that can place the workpiece (not necessarily large or huge). The measuring head can be moved to the measured point easily by manual or motorized means, and the coordinate value of the measured point is displayed by the reading device and the digital display device. Obviously, this is the simplest and most primitive measuring machine. With this measuring machine, the coordinate value of any point in the measured volume can be displayed through the reading device and digital display device.
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