English
Sarum fibrinogendan so'ng plazmadan ajratilgan och sariq shaffof suyuqlik va qon ivishidan so'ng plazmadan ba'zi koagulyatsion omillar chiqariladi yoki fibrinogen chiqarilgan plazmaga ishora qiladi. Media butilkalar sarumni saqlash uchun odatda poliester (PET) materialidan tayyorlanadi. Ushbu materialning xususiyatlari qanday?
Sarumni saqlash harorati odatda -5 °C dan -20 °C gacha bo'lib, uning asosiy vazifalari asosiy oziq moddalar, gormonlar va turli o'sish omillarini ta'minlash, bog'lashdir. oqsillar, kontaktni rag'batlantiruvchi va o'sish omillari hujayralarni mexanik shikastlanishdan himoya qiladi, Madaniyatdagi hujayralar ba'zi himoya qiladi. PETdan tayyorlangan media shishasi quyidagi xususiyatlarga ega:
1. Yuqori shaffoflik va yaxshi nashrida;
2. Yaxshi mexanik xususiyatlar, zarba kuchi boshqa plyonkalardan 3-5 baravar ko'p va katlama qarshiligi yaxshi;
3. Yog'ga chidamliligi, yog'ga chidamliligi, suyultirilgan kislota, suyultirilgan ishqor va ko'pchilik erituvchilar;
4. Yaxshi issiqlik qarish qarshiligi, mo'rtlashuv harorati -70 °C va u hali ham -30 °C da ma'lum bir qattiqlikka ega; PETni yoqish oson emas, olov sariq rangga ega va yonayotgan yog 'tomizadi;
5, toksik bo'lmagan, baxtsiz, yaxshi gigiena va xavfsizlik, oziq-ovqat mahsulotlarini qadoqlash uchun bevosita ishlatilishi mumkin;
6. Gaz va suv bug'ining o'tkazuvchanligi past bo'lib, u mukammal gaz to'siqni, suv, moy va hid xususiyatlariga ega.
PET materialining ajoyib xususiyatlari sarumni saqlash talablariga to'liq javob beradi. Ushbu media shishasi suvli eritmalarni, masalan, madaniy muhit, tripsin, reagentlar va boshqalarni uzoq muddatli saqlash uchun ham ishlatilishi mumkin.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.