查询词典 ring

Groups in adjacent positions on a Benzene ring are referred to as being "Ortho" one to the other.

在苯环上处于相邻位置的基团，位于相互的&邻位&上。

Groups in adjacent positions on a Benzene ring are referred to as being "Ortho" one to the other.

在苯环上处于相邻位置的基团，位于彼此的&邻位&上。

I've started to feel overtapped -- the feeling captured perfectly in Tolkien'sThe Fellowship of the Ring, when Bilbo says to Gandalf, I feel all thin, sort of stretched, if you know what I mean: like butter that has been scraped over too much bread.

我开始感到力不从心--那种用作者Tolkien笔下《指环王：魔戒现身》中比尔博对甘道夫说的话来说再合适不过了：我感觉很薄弱，像被拉伸，如果你知道我在说什么的话；就像被涂抹在了太多面包上的黄油。

Yet, completely differ from the cases of 〓-H, the 〓-dihydroxyl group was introduced after subsequent epoxidation and oxane ring opening of the 〓 tricyclic olefin.

在〓-β-H三环烯31基础上的环氧化和环氧开环反应引入的两个羟基，为双直立的〓，不同于〓类。

The semi-aromatic polyamide containing oxazole ring of the invention has the advantages of easy processing and high heat-resistant temperature.

本发明含唑环半芳香聚酰胺具有易加工和耐热温度高的优点。

Disclosed is a semi-aromatic polyamide containing oxazole ring and the related synthesis method, relating to a semi-aromatic nylon and the synthesis method.

一种含唑环半芳香聚酰胺及其合成方法，它涉及一种半芳香族尼龙及其合成方法。

The synthesis method of the invention is as follows: first, 5-amino-2-(p-aminophenyl)- benzoxazole and aliphatic diacid are respectively recrystallized; NMP is distilled; solubilizer is dried; second, in an atmosphere of nitrogen, after Py and NMP are mixed evenly and added to a sealed reactor, the solubilizer is added into the reactor, followed by the 5-amino-2-(p-aminophenyl)- benzoxazole, then the mixture in the reactor is stirred; second, in an atmosphere of nitrogen, the mixture in the second step is stirred and heated to 50-150 DEG C, then the aliphatic diacid is added, followed by TPP for condensation; fourth, after methanol is poured into the reactor, the sediment is separated out from the mixture, filtered, washed and dried, so the semi-aromatic polyamide containing oxazole ring is obtained.

本发明的合成方法如下：一、分别重结晶5-氨基-2-苯并唑与脂肪族二酸；蒸馏NMP；干燥增溶剂；二、在氮气气氛下，Py与NMP混匀后加入密封的反应器中，再加入增溶剂，然后加入5-氨基-2-苯并唑，搅拌；三、在氮气气氛下，将步骤二的混合液搅拌并升温至50℃～150℃后加入脂肪族二酸，再加入TPP后缩聚；四、再倾入甲醇析出沉淀，过滤，清洗沉淀，再干燥；即得到含唑环半芳香聚酰胺。

From the pith to the bark, vessel-elements proportion increased to the 9th ring, reaching the maximum, and then decreased; fiber proportion increased fluctuate, contrary to the ray proportion; and the parenchym proportion is in degression in juvenile wood, and increase by degrees in mature wood.

组织比量径向变异表现为从髓心向树皮方向，导管比量先增加至第9轮达最大值，以后降低；纤维比量呈波动性递增特点，与射线比量相反；枫杨轴向薄壁细胞比量径向变异主要表现为幼龄材由髓心向树皮方向递减，到成熟材以后又开始递增。

And, I thought who is this wholesome girl with her pink Pashmina scarf, brand new ring and diamond earrings?

我在想，这个围着粉红色的羊毛披肩、戴着新戒指和钻石耳环的清丽女生是谁啊？

Design the hardware block diagram that the main foundation closed the control system of the ring in the hardware of the system, and export the hardware that the passway need to choose to the input channel.

在系统的硬件设计主要根据闭环控制系统的硬件框图，对输入通道和输出通道所需的硬件进行选择。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。