English
Media shishasiodatda PET yoki PETG materialidan in'ektsion cho'zilgan puflash usuli bilan tayyorlangan sarumni saqlash uchun idishdir. Muhit hujayra o'sishi uchun zarur bo'lgan ozuqa moddasidir. Uning manbasiga ko'ra, u sintetik muhit va tabiiy muhitga bo'linadi, ularning ikkalasi ham media idishlarda saqlanadi.
Tabiiy muhit:
Eng ko'p ishlatiladigan tabiiy muhit sarum, asosan buzoq zardobidir. Sarum tarkibida turli xil hujayralar o'sishi omillari, yopishqoqlikni kuchaytiruvchi omillar va ularning ko'p faol moddalari mavjud. Sintetik muhit bilan birgalikda foydalanilganda hujayralar ko'payib, silliq o'sishi mumkin. Sarumni -5°C dan -20°C gacha bo'lgan maxsus muhit idishlarida saqlash kerak.
Sintetik muhit:
Sintetik muhit hujayralar tomonidan talab qilinadigan moddalarning turi va miqdoriga qarab qat'iy tuzilgan. Eksperimental sharoitlarni nazorat qilishni osonlashtiradigan ko'plab turlar va ma'lum komponentlar mavjud. Uglevodlar, aminokislotalar, lipidlar, noorganik tuzlar, vitaminlar, mikroelementlar va hujayra o'sishi omillarini o'z ichiga oladi. Biroq, tabiiy muhit bilan solishtirganda, ba'zi tabiiy noma'lum komponentlarni ma'lum kimyoviy komponentlar bilan almashtirib bo'lmaydi. Shuning uchun hujayra madaniyatida ishlatiladigan asosiy sintetik vosita, shuningdek, sintetik madaniyatni yengish uchun ma'lum miqdordagi tabiiy muhit komponentlarini qo'shishi kerak. Eng keng tarqalgan amaliyot bu buzoq sarumini qo'shishdir.
Ommaviy shishaning shakli kvadrat, tushunish oson, ko'pchilik kislota va gidroksidi korroziyaga chidamli, mo'rtlashuv harorati -70 °C va u hali ham ma'lum bir qattiqlikka ega. -30 ° C da. Bu yaxshi qadoqlash idishidir, ham tabiiy, ham sintetik vositalar media shishasida saqlanishi 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.