English
Hujayra madaniyati uning omon qolishi, o'sishi, ko'payishi va asosiy tuzilishi va funktsiyasini saqlab turishi uchun in vitro ichki muhitni simulyatsiya qilish usulini anglatadi. hujayra madaniyati flasks yordamida hujayra madaniyati jarayonida turli muammolarga duch keladi. Hujayra to'planishi nisbatan keng tarqalgan tur. Agar siz hujayra madaniyatining dastlabki bosqichiga ko'proq e'tibor qaratsangiz, bu holatni oldini olish mumkin.
1. Madaniy muhitda kaltsiy va magniy ionlarining mavjudligi hujayralarning osongina to'planishiga olib kelishi mumkin, shuning uchun hujayralarni yuvishda kaltsiy-magniysiz muvozanatli tuz eritmasidan foydalanishga e'tibor bering.
2. Juda mustahkam biriktirilgan hujayralar uchun ular bir nechta partiyalarda hazm bo'lishi mumkin, bu hujayralarga tripsin zararini sezilarli darajada kamaytiradi, hujayralarning yaxshi holatini ta'minlaydi va hujayralar to'planishining oldini oladi.
3. Hujayra o'sish zichligi juda yuqori bo'lsa, hujayralar to'planishiga olib kelishi mumkin. 70% -80% zichlik yaxshi, bu hujayralar to'planish ehtimolini sezilarli darajada kamaytiradi. Agar hujayralar koloniyalarga aylangan bo'lsa, birinchi navbatda past zichlikdagi hujayralarni o'tkazing va keyin hazm qiling va ertasi kuni ularni o'tkazing. Ketma-ket uchta o'tishdan so'ng, hujayra to'plari kichikroq va kichikroq bo'ladi. Bir necha o'tishdan so'ng, an'anaviy hazm qilish usuli va vaqtiga rioya qiling. Hujayralar asta-sekin alohida hujayralarga tarqaladi.
4. Ovqat hazm qilish jarayonida hujayra madaniyati kolbalarini kuchli silkitmaslikka harakat qiling, shunda hujayralar, ayniqsa, chiplar kabi tushib ketishi mumkin. Hujayralar suspenziyaga tushib ketgandan so'ng, ularni bir bo'lakka bo'lish qiyin, shuning uchun ovqat hazm qilish darajasini qat'iy nazorat qilish uchun hujayralar tushishidan oldin ularni puflab ochish kerak.
Hujayralarni etishtirish juda chuqur bilimdir. Hujayralarning sifati, madaniy muhitning tarkibi va hujayra o'sish zichligi hujayralarning o'sishiga ta'sir qiladi. hujayra madaniyati kolbalari ichida hujayralar to'planib qolmasligi uchun, hujayra madaniyati ishining muammosiz rivojlanishini ta'minlash uchun yuqoridagi jihatlardan nazorat qilishingiz 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.