查询词典 grafting

Grafting polymerization of acrylic acid onto flax initiated by ceric salt has been studied.

研究了利用铈盐引发丙烯腈与亚麻接枝共聚反应。

The grafting is believed to take place principally through the active centers which are formed on the cellulose substract by the action of ceric ion.

可以认为，接聚反应的发生主要是通过铈离子与纤维素作用在纤维素上生成活性中心。

With cerous ammonium nitric-ethylene diamine tetraacetic acid as an initiator, and with the protection of the nitrogen the graft-copolymerization of methylacrylic acid and vinyl acetate on chitosan grafting was studied.

以硝酸铈铵－乙二胺四乙酸为引发剂，在N2气的保护下，研究了壳聚糖与甲基丙烯酸和醋酸乙烯酯两种单体的接技共聚反应。

Percutaneous autogenous bone marrow grafting is capable of osteogenesis in the cicatricial bone defects.

经皮自体骨髓移植在骨缺损瘢痕组织内有成骨作用，在临床上可作为治疗骨不连的方法，尤其适用于骨不连部位软组织条件差、不具备开放植骨的病例。

When the concentration of MAH is higher than that of St, some MAH monomer reacts with St to form SMA, others can directly grafts onto PP macroradicals. When the amount of St added is higher than that of MAH, part of St monomer may preferentially react with PP macroradicals to form more stable styryl macroradicals, while others copolymerize with MAH, yielding SMA. MFR of the grafted PP is lower in this case. It is considered that MFR of the grafted PP is decided by concentration of free monomers, or, number of grafting reactive species. FTIR analysis confirmed the above mechanism.

当MAH单体用量多于St单体时，一部分MAH单体与St反应生成SMA，另一部分可直接与PP大分子自由基进行接枝反应；当St单体用量多于MAH单体时，除与MAH反应生成SMA之外的St单体可先与PP大分子自由基反应，并起到稳定PP自由基的作用，这时接枝物的MFR较小，亦即接枝物的MFR与体系中可进行接枝反应的活性种数目有关。

In order to accelerate propagation of Corylus heterophylla, status and trends in study of layering, cutting, grafting and tissue culture were reviewed, problems existed in related research were analyzed and future direction of development was also pointed out.

为了加快榛子苗木繁殖的速度，综述了有关榛子压条、扦插、嫁接和组织培养等方面研究的现状与趋势，分析了相关研究中存在的问题，并指出了其发展方向。

The recurrent rate of costochondral graft arthroplasty is lower than others, but severe absorption of grafting bone can be observed during long-term follow-up.

肋骨肋软骨复合体移植关节成形术术后复发率低，但远期移植骨吸收明显。

Grafting of crotonic acid, undecylenic acid, oleic acid, and acrylic acid onto ABS was initiated by benzoyl peroxide in 1, 2-dichloroethane solution.

以过氧化二苯甲酰为引发剂，在1，2-二氯乙烷溶液中进行反式丁烯酸、10-十一烯酸、油酸、丙烯酸接枝ABS树脂。

There is n strong association of PFO with paradoxical embolism and ischemic cerebral infarction, and reports on patients with PFO-related cryptogenic stroke after coronary artery bypass grafting and various surgical cases of heart or lung are being increasingly published in recent years.

近年来的研究发现，卵圆孔未闭的存在与反常栓塞、缺血性脑卒中的发生密切相关，与冠状动脉旁路移植术及各种心、肺手术后不明原因的卒中或猝死相关的报道日益增多。

There is a strong association of PFO with paradoxical embolism and ischemic cerebral infarction, and reports on patients with PFO related cryptogenic stroke after coronary artery bypass grafting and various surgical cases of heart or lung are being increasingly published in recent years.

近年来的研究发现，卵圆孔未闭的存在与反常栓塞、缺血性脑卒中的发生密切相关，与冠状动脉旁路移植术及各种心、肺手术后不明原因的卒中或猝死相关的报道日益增多。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。