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Normal propyl cinnamylate was synthesized by the esterification of normal propyl alcohol with cinnamic acid in the presence of potassium bisulfate monohydrate.

应用硫酸氢钾催化肉桂酸与正丙醇的酯化反应合成肉桂酸正丙酯。

LaCr_(1-x)M_xO_3(M=Co, Fe, Ni, Sn, Ti)and LaNi_(1-x)Ti_xO_3 compounds were synthesized by sol-gel technique in this paper. The thick film based sensors were fabricated and their gas-sensing properties were tested in the acetone, ethanol, normal propyl alcohol, carbinol, formaldehyde gases etc.

本文采用柠檬酸盐溶胶-凝胶法合成了LaCr_(1-x)M_xO_3(M=Co，Fe，Ni，Sn，Ti)和LaNi_(1-x)Ti_xO_3系列化合物的纳米粉体，并制备了厚膜型气敏元件，在丙酮、乙醇、正丙醇、甲醇、甲醛等有机气体中测试了它们的气敏性能。

Duration information is an essential part of speech prosody, and plays a critical role in improving the naturalness and understandability of synthesized speech.

摘要］ 时长信息是韵律的重要组成部分，对于语音合成的自然度和可懂度都有不可忽视的作用。

The results indicated that the proton transport number and fuel cell performance of BaCe_(0.8)Y_(0.2)O_(3-α) synthesized by sol-gel method could be obviously affected by sintering temperature.

以烧结体样品为固体电解质、多孔性铂为电极，组成氢及氧浓差电池、氢-空气燃料电池，测定了BaCe_(0.8)Y_(0.2)O_(3-α)烧结体的质子和氧离子迁移数以及燃料电池的性能，并与高温固相反应法合成的样品进行了比较。

In order to clone the VIP gene in the gastrointestinal tract from beijing duck, one pair of specific primers to VIP gene was designed and synthesized according to the chick sequence (X80906). Encoding VIP cDNA fragments were amplified by RT-PCR from the total RNA in the Proventriculus, the Duodenum and the Jejunum of Beijing duck. Their PCR products were ligated into pGEM-T easy vector, which was transformed into E. coil JM109. Positive bacteria clones were screened and identified by PCR method and digested with the double restriction enzyme EcoRⅠ. The sequence of VIP gene fragment was also determined and analyzed.

为从北京鸭胃肠道中扩增血管活性肠肽基因，根据鸡VIP基因（GenBank登录号X80906），设计了一对简并引物，从北京鸭腺胃、十二指肠和空肠提取总RNA，通过反转录－聚合酶链反应扩增，将从腺胃、十二指肠和空肠中扩增出的产物克隆到pGEM-Teasy载体上，导入大肠杆菌JM109，阳性克隆经双酶切鉴定后测序，将测序结果与鸡和鹅（GenBank登录号为DQ023161）的VIP基因进行同源性比较。

Spatial filtered pseudocolor encoding of holographic image for two - dimensional transparent object by rainbow holography with synthesized slit is proposed.

采用空间滤波合成狭缝彩虹全息术对二维透射物进行假彩色编码。

Two pairs of specific primers were synthesized based on the published sequence of some specific gene in PST.

在实验中设定不同梯度的人工接菌浓度，其中ELISA的检出临界值是1％。

According to the characteristics of pure time delay, large inertia, time-variance and nonlinearity of the temperature system, we proposed a kind of subsection control strategy that synthesized pure proportional, fuzzy and PID control, to guarantee quick and high-precision temperature control.

在现有卷染机机械结构的前提下，提出了基于双变频技术的速度张力传动控制机构，实现了智能卷染机的控制需求，并设计PLC软件程序；针对卷染机温度系统具有的纯滞后、大惯性、时变、非线性等特性，提出了一种分段控制策略，综合运用纯比例控制、模糊控制和PID控制，实现了快速、高精度的温度控制目标。

Results show that the product with the high yield and the high purity is synthesized.

实验结果表明合成了具有较高含量和较高收率的产品。

Moreover, one novel photochromic compound: 3,3-bis(4-methoxybenzyl)-3H-naphtho[2,1-b]pyran has been synthesized, which may be used in optical lenses to protect human eyes from being damaged by ultraviolet lights.

该化合物具有较好的光致变色性质，其开环式的颜色与吡啶并苯恶嗪的颜色互补，这两种化合物相结合构成第二代Transitions镜片的基础。

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