端细胞的

Ovule development began in August, and rectangle megasporocyte began to occur in December, and linear tetrads of megaspores were formed in meiosis. In most occasions, only the chalazal megaspore was functional.

云南红豆杉胚珠从8月开始发生，大孢子母细胞12月开始发生，呈方形，减数分裂后形成4个&一&字形大孢子，在大多数情况下，只有靠合点端的大孢子发育为功能大孢子。

Objective To investigate the effects of chemotherapeutic drugs with different dose on telomere length of BEL-7404 cells.

目的 观察不同浓度几种化疗药物对人肝癌BEL-7404细胞端粒长度的影响。

Tuber Fleeceflower Root serum can postpone senescence of 2BS, its mechanism may be associated with enhancement elimination of free radicals and activation of telomerase.

含何首乌血清对2BS细胞具有抗衰老作用，其机理可能与促进自由基的清除和激活端粒酶活性有关。

Objective To observe effects of Tuber Fleeceflower Root serum on activity of SOD, the expression of c-myc mRNA and the activity of telomerase of human fetal lung diploid fibroblasts (2BS).

目的 观察含何首乌血清对人胚肺二倍体成纤维细胞（2BS）超氧化物歧化酶活性、c-myc mRNA表达及端粒活性的影响。

Objective To observe effects of Tuber Fleeceflower Root serum on activity of SOD, the expression of c-myc mRNA and the activity of telomerase of human fetal lung diploid fibroblasts (2BS).

作者：李朝敢，韦星，农嵩，韦耀东，张树球目的观察含何首乌血清对人胚肺二倍体成纤维细胞（2BS）超氧化物歧化酶活性、c-myc mRNA表达及端粒活性的影响

Objective To investigate the expression of human telomerase reverse transcriptase in gestational trophoblastic diseases and its clinical significance.

目的 探讨人端粒酶逆转录酶在妊娠滋养细胞疾病中的表达及其临床意义。

Objective To investigate the expression of human telomerase reverse transcriptasein gestational tro-phoblastic diseases and its clinical significance.

目的 探讨人端粒酶逆转录酶在妊娠滋养细胞疾病中的表达及其临床意义。

RESULTS The chief pathological changes were the necrosis of histocyte and inflammation reaction within24h after fracture,the repair-ing cells showed active proliferation during72h to3wk,and normal osseous tissue was formed after8wk at the fracture sites.

结果 伤后24h内骨折端病理改变以组织坏死和炎症反应为主要变化，72h～3wk出现极为活跃的修复细胞增生，8wk基本达到骨性愈合。

This process is optimal for preserving the nutrient factors critical to the applications of cell culture, leptospira and microbiological growth.

这个过程是保存细胞培养，钩端螺旋体和微生物生长中营养因素的最佳方法。

Objective To investigate the characteristics of bone benign fibrous histocytoma, nonossifying fibroma and metaphyseal fibrous defect.

目的 探讨骨良性纤维组织细胞瘤、非骨化性纤维瘤及干骺端纤维性缺损的特殊表现。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。