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The effect of different calcium chloride concentration, reaction time and neutralized acid on yield of tagatose was investigated by single factor tests. Results showed that the condition, such as calcium chloride (0.01～0.03 mol/L), reaction time(20～40 min), acetum, carbon dioxide, phosphate acid to synthesize tagatose was suitable.

通过单因素实验，确定了以D-半乳糖为原料进行化学法合成D-塔格糖的工艺条件为：CaCl2的添加量在0.01～0.03 mol/L，反应时间在20～40 min，并用醋酸、CO2、磷酸中和时D-塔格糖产率较高。

Through the orthogonal experiment, the optimum condition for tagatose synthesization was determined to be 0.02 mol/L calcium chloride, 30 min, acetum neutralization.

通过正交设计实验优化反应条件，最终确定以0.02 mol/L的CaCl2为催化剂，反应时间30 min，用醋酸中和金属氢氧化物D-塔格糖复合物时，D-塔格糖的产率最高，可达到49.05%。

Objective To probe into the feasibility of synthesizing acetylsalicylic acid under mcrowave radiation condition.

目的 建立乙酰水杨酸的快速合成方法。

The general condition for athermalizing an optical system when the object surface is at finite or infinite distance is deduced in this paper, and the principle and design method of employing a diffractive optical element to athermalize and achromatize an optical system with normalized T-C chart are expanded.

推导了物面位于有限远和无限远时，实现热补偿的通用条件；并阐述了利用归化T-C 图设计消热差和消色差的红外光学系统的原理和方法。

The general condition for athermalzing an optical system when the object surface is at finite or infinite distance is deduced in this paper, and the principle and design method of employing a diffractive optical element to athermalize and achromatize an optical system with normalized T-C chart are expounded.

本文推导了物面位于有限和无限距离时实现光学补偿的通用条件，论述了利用归化T-C图设计热补偿和消色差红外光学系统的原理和设计方法，给出了8-12μm波段内、焦距123mm、相对口径F/2.5在20-60℃温度范围内的折衍混合红外光学系统的设计结果和理论评价结果，所述的设计方法可方便地推广到前视红外系统中。

The 22-year-old Spaniard, who moved to Totnes in south Devon in 2003, was born with achromatopsia, a rare condition that affects only one person in 33,000 and causes monochromatism, or complete colour blindness.

这部机器的发明者是一位年仅23岁的数字多媒体专家亚当·蒙塔丹。他表示，他的这项发明就好像是"在倾听一个色彩之轮"。

The experiment indicates: on condition that the mole ratio is 1.1:1, temperature is 90~98℃, pH is 1~2, acid adding speed is 1 drop/(2~3) second, the yield and quality of the products can get increased when reaction liquid disposed with ultrasound wave.

实验表明：在硅酸钠与钨酸钠的物质的量比为1.1：1，控温90~98℃，pH值1~2，加酸速率1滴／(2~3)s的优化条件下，用超声波处理反应液可以增加产品的产量和质量。

Decided relatively the craft condition of beautiful: IA occupies total monomer rub Er mark is 22%, 6.67% what cross ammonium sulphate dosage to be total monomer quality, reaction temperature ℃ of 80 ℃~85, acrylic acid and the drop that cross ammonium sulphate add time to be 2.5 H, heat preservation time is 3.5 H, total reaction time is 6 H.

确定了较佳的工艺条件：IA占总单体的摩尔分数为22%，过硫酸铵用量为总单体质量的6.67%，反应温度80℃~85℃，丙烯酸和过硫酸铵的滴加时间为2.5 h，保温时间为3.5 h，总反应时间为6 h。

Test research on the concrete resistance to chemical attack was conducted under different salt and acid attack condition.

对普通混凝土在各种盐类、酸类侵蚀介质作用下的抗化学侵蚀性进行了试验研究，测定了混凝土的侵蚀破坏率和混凝土中的氯离子含量。

Under the condition of natural acid deposition, the soil will be acidified gradually.

摘 要：自然酸沉降环境下，土壤酸化是一个逐步累积的过程。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。