化学

The Company's advanced technology and equipment, detection means complete, currently has a large IF Elbow push system machine, large R bender, metal links extrusion hydraulic press, stainless steel elbow hydraulic extrusion machine, 2000T hydraulic press table big job and 1000T, 500T, etc. Four-column hydraulic press and high-power resistance furnace heat treatment, shot blasting machine, such as noisy jet pipe production equipment, is equipped with a universal tensile testing machine, chemical analysis instruments, non-destructive testing equipment, spark photoelectric read the whole spectrum, such as test equipment and test equipment , the Company has a large number of pipe fittings for many years engaged in the manufacture of engineering and technical personnel and skilled workers, with process design, manufacturing, welding, heat treatment, chemical cleaning, and product inspection and testing of the ability to undertake a variety of bend of high, medium , low pressure and high temperature and low-temperature pipe fittings manufacturing business.

本公司工艺装备先进，检测手段齐全，目前拥有大型中频弯头推制机、大R弯管机、金属三通挤压液压机、不锈钢弯头挤压液压机、2000T大工作台面液压机及1000T、500T等四柱液压机和大功率热处理电阻炉、喷吵抛丸机械等管件生产专用设备，配备了万能材料拉力试验机、化学分析仪器、无损检测仪器、火花光电全读光谱仪器等检验和试验设备，本公司有一大批多年从事管件制造的工程技术人员和技术工人，具有工艺设计、制造、焊接、热处理、化学清洗及产品检验和试验的能力，能承接各种规格的弯头的高、中、低压及中高温和低温管件制造业务。

The results indicate that the synthesized sphene has a good chemical durability in the aqueous solution whose pH value is 5-9, the temperature and pH of the solution have important influences to its chemical durability in 1-21 days.

结果表明，在pH为5~9的水溶液中，合成榍石具有良好的化学稳定性，温度和pH是影响1~21 d化学稳定性的重要因素；42 d Ca(上标 2+)的浸出率比Ti(上标 4+)的浸出率高2个数量级；在90℃、pH=7下，Ca(上标 2+)和Ti(上标 4+)的42d归一化浸出率分别为3.33×10^(-3)、1.33×10^(-5)gm^(-2)d^(-1)；在25℃、pH=7下，Ca(上标 2+)和Ti(上标 2+)的42d归一化浸出率分别为1.52×10^(-3)、3.05×10^(-5)m^(-2)d^(-1)；在25℃、pH=3下，Ca(上标 2+)的42d归一化浸出率达到7.71×10^(-2)gm^(-2)d^(-1)。

The strategy of building the syn-anti chiral vicinal diolmoiety of sphingosine intermediate and the synthetic studies of anti-fungal antibioticssphingofungin using sugar as chiral pool are also described.

这些物质生理作用极强，但在机体中储存量极少、结构具有高度不均一性、生物和化学稳定性又差，它们的化学合成具有十分重要的理论和应用意义。

Emphasis on reaction mechanisms, synthesis, stereochemistry, as well as chemical and spectroscopic methods of analysis.

课程重点在反应机构、合成、立体化学、化学分析及仪器分析方法。

Software Description: EBAS is a program for balancing chemical equations and stoichiometry calculations.

EBAS 是一款用于平衡化学方程式和化学计量计算的软件。

With the rapid industral development of Jinlin Province ,there are more and more abandoned chemical reagents venting to environment , while the amount of them is stupendously increasing gradually.

随着吉林省工业化和信息化进程的不断加快，工业生产中的许多废弃化学试剂的排放在不断增加，这些废弃化学试剂日积月累，数量正在惊人地上升。

The principals and features of UV and four chemical disinfection processes were introduced in this paper, and it was pointed out that UV disinfection may become a succedaneum of traditional chemical disinfection methods.

介绍了四种常用的化学消毒法和紫外线消毒法在应用中的原理及特点，指出紫外线消毒法可能取代传统的化学消毒法并且具有广阔的应用前景。

In today's chemistry class, the teacher introduced the chemical components of hydrogen sulphide.

今天化学课上，老师介绍了硫化氢的化学成分。

This innovative DNA-sequencing technology was invented by Dr. Jingyue Ju, professor of Chemical Engineering and head of DNA Sequencing and Chemical Biology at the Judith P. Sulzberger, M.D.

这项革命性的DNA测序技术是由化学工程教授Jingyue Ju博士和哥伦比亚大学哥伦比亚基因组中心DNA测序和生物化学系主任Judith P。

Experts, the expansion of the chemical agent called motilin cells, hormones are chemical substances, commonly used fruits and vegetables have a kiwi, watermelon, strawberries, cherries, tomatoes, and some vegetable farmers in the cucumber, summer squash and other vegetables used in this way to make fruits and vegetables-cell non-normal enlargement, head of fruits and vegetables grown up than the normal 1-2 times as large, the shape become more exotic, such as tomatoes, long tip, strawberries were piriform, cucumber apex hypertrophy with pedicle sharp contrast and so on.

专家介绍，膨大剂的化学名称叫细胞集动素，属于激素类化学物质，常用的果蔬有猕猴桃、西瓜、草莓、樱桃、西红柿等，有些菜农在黄瓜、西葫芦等蔬菜上使用，以此方法使果蔬细胞非正常膨大，个头比正常长大的果蔬大1—2倍，形状变得比较奇特，如西红柿长尖、草莓呈梨状，黄瓜尖部肥大与蒂部形成鲜明对比等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。