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1·The survival ratio of bisected embryo is influenced by many factors.

有多方面因素影响分割胚胎的成活率。

2·The survival ratio was preferable with the stocks of Ilex cornuta and Ilex Integra, between which the Ilex cornuta showed better.

以枸骨和全缘冬青作为嫁接砧木，均能取得较好的成活率，但采用枸骨嫁接其成活率和新梢的生长更好；

3·The survival ratio and the colony differentiation ratio of embryonic rat midbrain neurons were estimated by MTT assay and microscopy respectively.

采用MTT分析、形态学观察等方法，观察细胞存活率和集落分化率。

4·After many-year experiments, the result show that bud forcing treatment can increase the survival ratio of Populus bolleana with cuttage by hard branch up to 80%-95%.

经过多年试验表明，采取对插穗进行催芽处理等一系列育苗技术措施，可使新疆杨硬枝扦插成活率提高到80%-95%。

5·We conclude that the middle part of the flap works as an intermediary pedicle, and is the basis of the early pedicle division and superior survival ratio of the flap.

皮瓣中段血管构筑的变化起一个“中介蒂”的作用，是皮瓣能够早期断蒂及超过传统长宽比例可以成活的基础。

6·RESULTS:Compared with group B, group A had shorter operative time, shorter duration of postoperative discomfort, higher survival ratio of graft and lower recurrence rate.

结果：A组在手术时间、术后不适感持续时间、移植片成活状况、复发率等方面均明显优于B组。

7·This experiment also studied the transplanting technology of Elaeagnus mollis Diels tube plantlet and environmental conditions and the transplanting survival ratio was up to 66%.

本实验对翅果油树试管苗的移栽技术及环境条件进行了探讨，移栽成活率达66%。

8·In the cases that the patient suffers from low survival ratio disease, the doctor's fault reduces the ratio, and accelerates the deterioration of the patient's conditions or even death.

在患者罹患低存活率疾病的案件中，医生的过失又使得患者存活几率降低，从而加速了患者病情的恶化甚至死亡。

9·To enhance manual grafting rate and survival ratio of vegetable seedling grafted in China, a semi-auto mechanical grafting machine has been developed with cut grafting method applied widely.

为解决中国蔬菜嫁接育苗作业中存在的人工嫁接速度低、嫁接苗成活率不高等问题，该研究采用成活率高、应用广泛、作业简单的插接法开发半自动机械嫁接装置。

10·Objective Propose a method that combines the propensity score approach and non-parametric survival analysis for hazard ratio estimation in non-randomized medical researches.

目的提出一种适用于非随机化医学研究的，结合倾向指数与非参数生存分析估计风险比的方法。