查询词典 pre-existent

Compared with classical cytotoxic T lymphocytes , NK cells are superior in the following aspects: NK cells are among the first cell types to be activated after intracellular pathogen stimuli, the activity of NK cells peaked between 1 to 3 days, retained during the first 7-10 days, and the T cells response emerged only after 7 days when the NK cell responses begin to decline; though comprising of only 10％-15％ of peripheral lymphocytes, NK cells mobilize most of the cell populations in a strong and high level response to different invasions, and act as key factors at early defense before a specific immune response could mount, while only certain clones were involved in T cell response; NK cells kill virus-infected or malignant transformed cells without pre-sensitization and without restriction by major histocompatibility antigen, which is usually a mechanism of immune escape to T cell recognition by virus-infected or tumor cells, thus NK cell in complementary with T cells play crucial roles in tumor and virus eradication.

NK细胞以其强大的细胞毒活性为特征，与细胞毒性T细胞相比，NK细胞具有如下特点：NK细胞虽然只占外周血淋巴细胞的10-15％，但是对刺激性因素产生应答的过程十分迅速，一次可以调动大多数细胞共同参与，而不是几个克隆的活化，免疫应答的强度高；病毒感染或恶性转化细胞的一个主要特征是细胞表达的MHCⅠ类分子下降或消失，并借助这一机制逃避特异性T细胞应答的识别，NK细胞介导的杀伤活性无需抗原刺激，不受MHCⅠ分子表达的限制，从而与T细胞应答互为补充发挥免疫防御的功能；NK细胞的免疫活性可以被多种细胞因子上调，其中IFNα，IL-2，IL-12，IL-15和IL-18具备更强的作用；NK细胞具有强大的细胞因子分泌功能，对于启动T细胞特异性应答必不可少。

To forestall any attempts at exegesis('Author, Citing Dadaism's Erstwhile Esotericism, Opposes Present-Day "Mamaist" Obfuscations'), I confess that as a title it means nothing at all; but then the very concept of meaning is now outdated, nerdy, pre-ironic.

作者标榜了达达主义，并对古老的奥秘进行了无限的憧憬和展望；而对现在仍然存在的只是"模糊不清而无任何实质意义的玛玛主义"进行了不懈的抨击。

To forestall any attempts at exegesis ('Author, Citing Dadaism's Erstwhile Esotericism, Opposes Present-Day "Mamaist" Obfuscations'), I confess that as a title it means nothing at all; but then the very concept of meaning is now outdated, nerdy, pre-ironic.

为了免去注释的麻烦（作者，引用达达主义的早期深奥主义，与现在的实际主义者的困惑相反），我承认，作为题目它毫无意义；不过，"意义"的概念如今已是过时、卑微、且极具讽刺的。

Also still undecided is the importance and influence of Essenism within pre-AD 70 Judaism and early Christianity.

也仍然是未定的重要性和影响力Essenism内预先公元70犹太教和早期基督教。

In this part, we analyzed the condition of pre-esterification and esterification, and found out the best method.

其中最优酯交换条件为：醇油摩尔比为6：1，催化剂为NaOH，用量为油重的1%，反应温度65℃，反应时间3小时。

In terms of the numbers, however, the pre-eminent ethnic group is the Han Chinese .

今天的中国是一个拥有56个民族的，并一汉民族为主的国家。

Keywords: pre-service teacher, ethnographical inquiry, early childhood teacher education, field experience

本文最后提出一些「应用民族志引导学生成为教学现场研究者」方法学上的问题省思。

From the Ningbo Chemical Industry Zone was informed that a group of a total investment of about 28 billion yuan infrastructure and downstream series ethylene project officially started today, the project include: Akzo Nobel of ethylene amines and biological sewage pre-treatment projects, Ningbo Kim Hyde flag separation projects EPA Chemical Co., Ltd., Ningbo瑞福特Gas Storage and Transportation Co., Ltd.

记者从宁波化工区管委会获悉，一批总投资约28亿元人民币的基础设施及乙烯下游系列项目今日正式动工，项目包括：阿克苏诺贝尔乙烯胺及生物污水预处理项目、宁波金海德旗化工有限公司碳五分离项目、宁波瑞福特气体储运有限公司低温乙烯储罐项目等。

Leveling agent O-25, emulsifier O series, Emulsifier MOA series, Emulsifier TX, OP; polyoxyethylene castor oil EL, polyoxyethylene fatty acid ester LAE, SG; emulsifier Span, Tween series, Poly ethylene glycol fatty acid ester; pesticide emulsifier, paraffin wax emulsifier, palm wax emulsifier, emulsifier butter, dimethyl silicone oil emulsifier, amino oil emulsifier, white oil emulsion, kerosene emulsion; PGA diol PEG series, polypropylene glycol PPG series, propylene glycol polyether block, Penetrant series; alcohol, phenol ether phosphate; antistatic agent series textile series of pre-treatment level dyeing auxiliaries agent series Softener series

匀染剂O-25，乳化剂O系列，乳化剂MOA系列，乳化剂TX，OP；蓖麻油聚氧乙烯醚EL，脂肪酸聚氧乙烯酯LAE、SG；乳化剂司盘、吐温系列，聚乙二醇脂肪酸酯；农药乳化剂，石蜡乳化剂，棕榈蜡乳化剂，牛油乳化剂，二甲基硅油乳化剂，氨基硅油乳化剂，白油乳化剂，煤油乳化剂；聚乙二醇PEG系列，聚丙二醇PPG系列，丙二醇嵌段聚醚，渗透剂系列；醇、酚醚磷酸酯

Free for City youth to carry out pre-marital check eugenic four test cards unemployed pregnant women to carry out systems management.

免费为市南区的青年进行婚前检查、优生四项检测、无业孕妇建卡，进行系统管理。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。