(1) Principle: Old tuberculin (OT), the main component is the protein of Mycobacterium tuberculosis. Dilute it 10,000 times so that every 0.1ml contains 1u. Pure protein derivative (PPD) is the purified product after precipitation of tuberculosis culture filtrate with trichloroacetic acid. Each 0.
Read moreAt the end of last month, a picture of WeChat left out turned the entire furniture industry into a public opinion theme. Everyone is discussing the content of this picture and the meaning behind it. This picture is the Red Star Macalline Senses Director stipulates that all of its stores must resist
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Read moreThe Double Eleven is coming again. The major e-commerce companies are preparing for the "Online Shopping Carnival". Recently, they have come to the home store to boycott the "blocking order" of e-commerce. Recently, the reporter visited several home stores in the city, and the l
Read moreBeijing Normal University, Seventh Chapter, Chapter 11, Section 2 "Urine Shape 1. Know the composition of the urinary system; understand the structure of the kidney and the structural characteristics related to urine formation. 2. Can describe the process of urine formation and discharge. 3. St
Read moreAlso known as Icelandic penicillium, it is widely distributed and mainly grows in rice, corn, and barley, producing penicillin island. The conidia stalks are short, generally 50-75um, branched and produced from aerial hyphae. The broom-shaped branches are bi-wheeled symmetrical. The small stalks
Read moreThe Yuming brand small spray dryer YM-6000Y spray dryer (spray dryer / spray dryer) produced and developed by Shanghai Yuming Instrument Co., Ltd. and it is mainly suitable for the production of trace particles in universities, research institutes and food, pharmaceutical and chemical enterprise l
Read moreAbbe Refractometer Refractometer is also called refractometer. It is an instrument that uses light to measure the concentration of liquid, and it is used to determine the refractive index, birefringence, and optical properties. Refractive index is an important physical constant when measuring sub
Read moreShanghai Haozhuang (LNB) brand constant temperature shaker, also known as constant temperature oscillator, is a biochemical instrument for cultivating and preparing biological samples. It is a precision for scientific research, education and production departments of plants, biology, microorganism
Read moreThe reason why the big leaf huanghuali furniture has a close relationship with Feng Shui is because the inner quality of the big leaf huanghuali furniture and the indoor layout can change the pattern inside the house, thus having a certain effect on feng shui. The essence of Feng Shui is to use the
Read more[ Chinese wardrobe network ] Modern life, the pursuit of luxury, and the pursuit of low-key luxury atmosphere. The long-lasting European furniture in the furniture market once again pushes European luxury furniture to the peak of the furniture era. Classic European luxury furniture,
Read morePage 1: Choose the orientation of the stove to make your healthy family prosper Page 2: The orientation, orientation, interior layout and color design of the kitchen are important The stove is the source of human health and the foundation of health. How to grasp the reasonable layout of the kitch
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