交替

By analyzing the molar fraction of St and MAh in the copolymers obtained from 〓C spectra, the copolymers obtained are proved to be strictly alternating structure, and sequence information obtained from DEPT experiments also verifies the copolymers with MSM sequence.

通过分析〓C NMR得到共聚物中St和MAh摩尔含量，证明共聚物具有严格交替结构，从DEPT实验中得到的结构信息表明共聚物只含有MSM序列。并且探讨了可控聚合反应的机理。

This study investigated the effect of sludge retention time on the removal of high concentrations of organic carbon, nitrogen and phosphate in a bench-scale sequencing batch reactor operating with a three-stage alternating anoxic-oxic sequence and step-feed to treat synthetic wastewater.

本研究利用阶梯进流配合缺氧／厌氧－好氧三阶段交替操作之批式反应器系统（ the step-feed alternating anoxic/anaerobic-oxic sequencing batch reactor， SAOSBR ），处理含高浓度碳、氮、磷之合成废水，并探讨污泥停留时间，对系统硝化、脱硝、除磷特性及处理效能的影响。

As a result, low altitude operation is characterized by the appearance of a series of alternating pressure peaks and valleys along the nozzle surface.

因此，低空运作的特点是出现了一系列的交替的压力，高峰和低谷沿喷嘴表面。

Many child development experts view early childhood as a series of alternating attachment and separation phases that help to establish the child as an independent person who can relate happily to others.

许多儿童发展专家认为幼儿教育作为了一系列的交替附着和分离阶段，这有助于建立儿童作为一个独立的人谁可以涉及愉快地给他人。

In color dragons varies from greenish to golden, with a series of alternating short and long spines extending down the back and along the tail, where they become longer.

不同的颜色从绿色的巨龙，以金色，提出了一系列短期和长期交替棘延长了回来，并沿尾，他们在那里成为更长的时间。

While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating

问题：排错一个连接问题，一个网络管理员注意到交换机端口的LED灯不停在绿色和琥珀色之间交替转换，这意味着设么？

A series of crosslinkable alternating polys containing pendant phenylethynyl groups were synthesized via aromatic nucleophilic substitution reaction. The resultant polymers show good solubility in ordinary organic solvents.

以耐高温高性能树脂-聚芳醚酮作为研究对象，从改善材料的加工工艺性及提高材料的使用温度出发，对含有苯乙炔基的交替共聚物进行了系统研究。

2A series of alternating polyamide-imideswith fluorenyl cardo structure was synthesized by "one-pot" polycondensation of cardo diamines,trimellitic anhydride and various aromatic diamines including p-phenylene diamine,m-phenylene diamine, 4,4\'-oxydianiline,3,4\'-oxydianiline,2,2-bis[4-(4-aminophenoxy)phenyl]propane, 2,2-bis[4-(3-aminophenoxy)phenyl]propane respectively using triphenyl phosphite as condensing agents.

采用"一锅法"(One—pot Synthesis)，由Cardo二胺、偏苯三酸酐和不同二胺包括对苯二胺、间苯二胺、4，4\'—二氨基二苯醚、3，4\'—二氨基二苯醚、2，2—双[4—(4—氨基苯氧基苯基]丙烷和2，2—双[4—(3—氨基苯氧基)苯基]丙烷合成了一系列含有芴基Cardo结构的交替聚酰胺酰亚胺。

TRANSFORMERS AND REGULATORS 1-1 INTRODUCTION Transformers provide a simple means of changing an alternating voltage from one value to another.

变压器和监管 1-1引言变压器提供了一种简单的手段不断变化的交替电压从一个值到另一个。

Their hard work and sweat is not alternating, in a last effort after which they have been successful.

他们的辛勤与汗水是不可交替的，在一次一次的努力之后他们获得了成功。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失