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- Methods Administered dose of PERC to NHEK were determined according to neutral red uptake(NRU)assay with free serum culture in vitro. [方法]用0.;25%25的胰蛋白酶经冷温两步消化皮肤;分离得到NHEK;进行体外无血清培养; 用中性红吸附试验(NRU)测定PERC对NHEK的中性红吸附减少50%25的浓度(NR50值);并据此确定PERC细胞毒性试验的染毒剂量;
- Methods Cell morphology,MTT assay and flow cytometry were used to examine in leukemia K562 cell cultured in low concentration serum and free serum. 方法应用形态学、MTT分析法、流式细胞术对在低血清以及无血清条件下的白血病细胞进行检测和观察。
- Buy hormone free meats to eat. 购买不含贺尔蒙的肉类。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
- Affect of AEDs on serum sex hormone levels was significant. AEDs 明显影响血清性腺激素水平。
- Jon sent away for a free almanac. 乔写信去要一份免费赠阅的年历。
- Now that I am free, I can enjoy music for a while. 既然有空,我可以享受一下音乐。
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
- He closed the deal successfully and was home free. 买卖成交了,他松了一口气。
- He is free with his advice to his pupils. 他直言无隐地向学生提出忠告。
- He is given a free ticket to the exhibition. 有人给他一张免费参观展览的票。
- He was inclined to give them a free hand. 他倾向于放手让他们干。
- Hormone secretion is controlled by the pituitary gland. 荷尔蒙的分泌是由垂体控制的。
- She's made free with my records during my absence. 我不在时她擅自用我的磁带。
- We'll eat at whichever restaurant has a free table. 哪个饭馆有空桌我们就在哪儿吃吧。
- The politician cops out on the issue of free trade. 那政客对自由贸易的问题只是一味逃避。
- At once he slew him and set Io free. 他立刻杀死了阿尔戈斯,放掉了伊俄。