查询词典 synthetic

Described here is a direct and convergent synthetic route to get the side chain of Phorboxazole A.

我的工作是首先展开对其活性边链的合成研究。

D-p-hydroxyphenylglycine is one of the important side chain in the semi-synthetic-lactam antibiotic molecules widely clinically used in the world.

D-对羟基苯甘氨酸(D-p-hydroxyphenylglycine，D-HPG)是临床上广泛使用的半合成β-内酰胺类抗生素的重要结构部分。

The invention relates to an intergrowth molecular sieve and a synthetic method thereof, which mainly solves the problems of singular apertures, rather weak acidity and low activity of porous materials of the prior art.

本发明涉及一种共生分子筛及其合成方法，主要在于解决现有技术合成的多孔材料孔径单一、酸性较弱、活性不高的问题。

The invention relates to a three-phase intergrowth molecular sieve and a synthetic method thereof, which mainly solves the problems of singular aperture, rather weak acidity and low activity of the porous material synthesized by the prior art.

本发明涉及一种三相共生分子筛及其合成方法，主要解决现有技术合成的多孔材料孔径单一、酸性较弱、活性不高的问题。

Frequency of use of technology into the signal generator, often referred to as synthetic signal generator.

利用频率合成技术制成的，通常被称为合成。

The formation of silique dehsicence susceptibility was investigated in terms of water content, synthetic rate of ethylene, enzyme activity of exo polygalacturonase and end cellulase , cell alteration in dehiscence zone in silique and silique dehiscence susceptibility during silique development.

从油菜角果发育过程中角果含水量、乙烯合成速率、外切 PG 酶和内切纤维素酶活性，以及角果裂区切片观察等方面研究了角果开裂敏感性形成的原因⒚花后50d 的角果果柄端壳状果瓣和线状果瓣间的裂区薄壁细胞膨大，在高倍光学显微镜下可见胞间空隙开始形成⒚此前6d 内乙烯合成速率迅速上升并出现第二次合成高峰，与之同步发生外切 PG酶和内切纤维素酶活性急剧上升，而乙烯合成第二高峰出现于角果含水量低于80％以下⒚由此看来，角果失水引起乙烯合成第二高峰出现，从而导致水解酶活性上升，最终导致果瓣裂区薄壁细胞膨大，分离和胞间空隙形成及角果开裂敏感性产生

Burner Gas Singeing Machine This machine is used for singeing cotton, synthetic and their fabrics to burn to fuzz and foreign matters on the surface of the fabric.

四火口火烧毛机本机适用于棉、化纤及其混纺织物烧除织物表面的杂质和茸毛，也可以供织物冷堆处理的轧液卷装。

The invention relates to a Magadiite/ZSM-5 intergrowth material and a synthetic method thereof, which mainly solves the problems of singular pore-size distribution and nonadjustable pore diameters of the porous material synthesized by the prior art.

本发明涉及一种Magadiite/ZSM-5共生材料及其合成方法，主要在于解决现有技术合成的多孔材料孔径分布单一、孔直径不可调节的问题。

A kind of digital synthetic reference sinusoidal generator having the function of synchronous with line voltage is presented by using digital method.

提出了一种采用数字合成的方法生成单相具有与电网电压同步的数字式基准正弦波信号发生器的方法。

Secondly,the synthesis of SIPE and the reaction conditions such as catalyst,anti-ether agent,temperature and water are researched to control the generation of diethylene glycol and the self-polymerization of SIPM by controlling the total quantum of distillate and the temperature of distillation column and reaction and the reliable synthetic conditions of SIPE are obtained.

其次，在此基础上，研究了三单体的中间体SIPE的合成工艺，研究了催化剂、抑醚剂、反应温度及水分等对合成反应的影响，同时提出了控制馏出物总量、控制分馏柱温度和控制反应温度等措施来控制二甘醇生成反应和SIPM自聚等副反应，得到了可靠的SIPE合成工艺。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷