研究了重氮烯氢向前手性烯烃单侧的非对映选择性转移。
Diastereoselective transfer of the diazene hydrogen to one face of the prochiral alkene was studied.
建立了一个选择性转移效应模型来解释此现象。
A selective transfer effect model was established to explain the phenomena.
由于其在肿瘤细胞器官选择性转移中的重要作用，趋化因子受体有希望成为肿瘤治疗的靶标并具有预后价值。
Chemokine receptors may become the hopeful targets in tumor therapy and have merits of prognosis because of their critical roles in tumor metastasis to specific organs.
聚乙二醇作为相转移催化剂可以提高反应的选择性。
As a phase transfer catalyst polyethylene glycol can improve the selectivity of the reaction.
聚乙二醇作为相转移催化剂可以提高反应的选择性。
As a phase transfer catalyst, polyethylene glycol could improve the selectivity of the reaction.
该催化剂具有高活性、高选择性，且具有反应控制相转移催化剂的特性。
The catalyst has high activity, selectivity and the characteristic of reaction controlled phase transfer catalyst.
当项目干系人对项目信息没有回应或者不以希望的方式进行回应时，应该建立积极的，选择性的沟通机制以转移这些问题。
When stakeholders do not respond to information or do not respond in an expected manner, alternative, proactive communication mechanisms may be necessary to avert trouble.
此类型矿床是富铀地层选择性熔融，并在此过程中导致铀的活化、转移和局部富集的结果。
The formation of uranium mineralization is considered as a result remobilization, migration and local concentration caused by preferential melting of the uranium-rich strata.
结论：肝转移癌的早期诊断是提高生存率的关键，手术切除及选择性肝动脉栓塞化疗是改善其预后的选择。
Conclusion: Early diagnosis is the key to increase survival rate. Resection and selective embolic chemotherapy of hepatic artery are among therapeutic modalities.
Slentrol是一种新型化学物质，选择性微粒体甘油三酸酯转移蛋白抑制剂，阻断脂蛋白在血液中的合成和释放。
Slentrol is a new chemical entity called a selective microsomal triglyceride transfer protein inhibitor, which blocks the assembly and release of lipoproteins into the bloodstream.
同时，在加强氢转移反应减少烯烃时，还需考虑焦炭选择性变差和汽油辛烷值下降的问题。
Meanwhile, coke yield increase and octane number loss should be considered when reducing olefins through hydrogen transfer reactions.
结果表明：适当的反应温度，剂油比，反应时间短，可能损害的热裂化反应，氢转移反应，并获得高的丙烯选择性。
The result showed proper reaction temperature, catalyst to oil ratio and short reaction time may detriment thermal cracking reaction, hydrogen transfer reactions, and get high propylene selectivity.
研究结果表明，选择性激发铕离子络合物中的蒽醌冠醚能发生分子内能量转移，观察到铕离子的发光。
Selective excitation of the anthraquione moiety intramolecular energy transfer from excitated anthraquione to Eu 3+ occurred, the luminescence of Eu 3+ was observed.
最具竞争力的转移固体薄膜技术主要有键合加选择性腐蚀工艺和注氢智能剥离工艺。
The most competitive technologies of transferring solid membrane mainly include bond and etch process and smart cut process.
动力学分析表明，反应置于反胶束体系将不仅提高酶的催化速度而且提高转移酶活力对水解酶活力的选择性。
The results on a rational analysis of the reaction mechanisms showed that higher activity and higher ratio of transferase to hydrolase activity are favorable for use in reverse micelles system.
季铵盐中烷基的转移具有较好的选择性，其优先顺序为：苄基＞伯烷基＞仲烷基。
Excellent selectivity in alkyl transfer was noted in the sequence of PhCH2> primary alkyl> secondary alkyl.
磺酰脲类除草剂可被植物的根、茎和叶强烈吸收，并在植株内迅速传导转移和代谢，快速代谢失活是作物对该类除草剂的选择性基础。
Sulfonylurea herbicide can be absorbed by roots, stetro and leaves, and rapidly transported and metabolized in plants. Rapid metabolize is the basis of selectivity of this kind of herbicide.
现综述术前选择性门静脉栓塞术在大肠癌肝转移应用中的病理生理学基础、临床适应证及疗效。
This review will focus on pathophysiological mechanism, clinical indication , and efficacy of PVE in colorectal cancer liver metastases.
氢转移反应越低，丙烯及丁烯等烯烃选择性越高。
Propylene and butylene yields increase with low hydrogen transfer reaction.
本实验研究空间选择性注意在上下视野间的转移及其是否受知觉空间的影响。
The current work examined the shift of spatial attention between the upper and lower visual fields and whether the attentional shift is influenced by perceived three-dimensional space.
结论选择性肺动脉灌注化疗用于肺叶切除术后的肺癌患者，能够杀灭和抑制局部微转移灶，减少局部复发和远期血行转移的发生率，提高长期生存率。
Conclusion Pulmonary artery infusion for lung cancer patients after lobectomy can reduce the post operative recurrence and metastasis and improve the long term survival rates.
目的评价对于舌鳞癌无区域性淋巴结转移患者选择性颈淋巴清扫的必要性。
Objective To assess whether the elective neck dissection would be beneficial as a routine management in the N 0 squamous cell carcinoma of the tongue.
与注意相关的现象：选择性注意、注意转移、分心信息抑制和集中注意。
And pay attention to the related phenomenon: selective attention, attention, inhibition of distracting information and focused attention.
此类型矿床是富铀地层选择性熔融，并在此过程中导致铀的活化、转移和局部富集的结果。
The formation of uranium mineralization is considered as a result remobilization, migration and local concentration caused by preferenti…
研究显示恩镰孢菌素是一个离子载体，最近，它们对酰基辅酶A胆固醇转移酶的效应、杀线虫活性和选择性的抗肿瘤活性得到了更多的关注。
The enniatins have been shown to act as ionophores. Recently their effects on acyl-CoA cholesterol transferase, as nematocides and the selectivity of their antitumor action have received more focus.
结论声门上型喉癌颈淋巴结的隐匿性转移率高，早期不易诊断，应积极行选择性颈廓清术。
Conclusion The occult metastatic rate of supraglottic carcinoma is high, and selective neck dissection may be necessary.
结论声门上型喉癌颈淋巴结的隐匿性转移率高，早期不易诊断，应积极行选择性颈廓清术。
Conclusion The occult metastatic rate of supraglottic carcinoma is high, and selective neck dissection may be necessary.
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