查询词典 First Steps

Our first paper is a theoretical treatment, from a geochemical perspective, of how the sophisticated machinery doing this reaction may have arisen, what precursor chemistries may have been used, and what evolutionary steps occurred to get to oxygenic photosynthesis.

我们的第一篇文章是从地球化学的角度，在理论上分析光合作用的复杂机制的可能成因，其中使用了什么前体化学物，以及产氧的光合作用的进化途径。

Furthermore, he noted that diet and exercise remain the first important steps before pharmacologic therapy is initiated.

另外，他还指出注意饮食和体育锻炼仍是行药物治疗前最关键的预防措施。

This thesis is constituted by four parts: In the first part a summarization is given on the main total synthetic methods of isoflavones, for example, deoxybenzoin method which generally involves two steps wherein a phenol is reacted in the presence of a Lewis acid with phenylacetic acid to generate an intermediate deoxybenzoin which is then cyclized with a one carbon electrophile.

本论文主要工作包括四部分：第一章综述了近年来全合成异黄酮的主要方法：脱氧安息香法，是以多羟基苯酚与苯乙酸或苯乙腈在Lewis酸存在下，反应生成中间体脱氧安息香，然后再与亲电碳试剂进行关环反应生成异黄酮。

First and foremost, we must take positive steps right now to put an end to the plundering of the Earth's natural resources.

首先，我们必须立即采取积极措施制止掠夺地球的自然资源。

Steps to fry the vege: fry the garlic first, if the carots were boiled then is alright, if you are lazy to preboil them, now put the carots in and fry them...

4炒菜，先把蒜米洋葱爆香，如果萝卜之前有用热水烫过就没什么，如果懒惰没有的话，现在就把萝卜放下去煮一煮让它熟。。。

In less than 15 minutes we can prequalify you for a bad credit home loan as a first time home buyer or help you understand the steps you can take to put you on the path to home ownership.

在不到15分钟你可以预审不良信用贷款作为首次置业或帮助您了解您可以采取步骤使你走上居。

Methods first , to acquire the highly pured glomeruli by three steps grade filtrated net ; next , to culture the microvascular endothelial cell in vitro with the transplant methods of isolated glomerali.

方法采用三步梯度筛网法，先获得较高纯度的肾血管球，再应用肾血管球外植法体外培养肾微血管内皮细胞。

The demetalation of Ni-OEP in the presence of H2 consists of two steps. The first step is hydrogenation of nickel porphyrin to nickel chlorin, and the second step is decomposition of nickel chlorin and the removal of nickel.

，也有相当一部分镍卟啉发生分解，脱除所配合的金属；镍卟啉的临氢脱金属反应过程分为两步，第一步是卟啉分子中一个吡咯环上的外环双键加氢生成镍卟酚，第二步镍卟酚分解，金属脱除。

The process includes the steps of reacting a plurality of ethylenically unsaturated monomers and a reaction moderator with a macromer having induced unsaturation in the presence of a carrier polyol, a free radical polymerization initiator, and a first graft polyol.

本发明方法包括使多种烯键不饱和单体和反应调节剂与具有诱导不饱和度的大分子单体在载体多元醇、自由基聚合引发剂和初级接枝多元醇存在下反应的步骤。

They watched as the first group of tourists slowly made their way down the narrow steps.

他们看到的第一批游客缓慢的方式作出了狭隘的步骤。

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。