氨脂

The better reaction conditions are as follows: Reaction temperature is 40°C, Reaction time is 5 hour; the ratio of L - phenylalanine to acetic acid and N - formyl - L- aspartyl anhydrideis 1:10.2:1.1, Its yield is 95.4%.

在查阅文献的基础上，得到较优的α-L-天冬氨酰L-苯丙氨酸甲脂盐酸盐的合成方案，在甲醇一水体系中，N-甲酰-α-L-天冬氨酰-L-苯丙氨酸在浓盐酸的作用下60℃水解90分钟，后冷却到15℃加入浓盐酸在20～30℃保温反应96小时，进行甲脂化，形成甲脂盐酸盐，结晶析出。

It is allowed to be erected on escalators and stairways. And the castors prevent any damage on the marble or wood floor and the lawn. And it is designed for use in confined spaces such as narrow alleyways and corridors. And it can be assembled in many ways.

支腿高度自由调节，能基于台阶、楼梯及复杂地形使用；借助聚氨脂脚轮，可避免对大理石、木地板及草坪等地面的损坏；能在狭窄空间进出、搭建和作业；组合多样，外型美观。

Application: CFC-11 is a refrigerant(0℃ to 10℃grade )applied in the air conditioners with centrifugal, cyclo compressors, It is also used as foaming agent for polyurethane foam.

主要用途： CFC-11是一种高温致冷剂，能使环境温度控制在0～10℃之间。主要用于离心式、回旋式压缩机空调制冷装置中的致冷剂，还大量用作聚氨脂泡沫塑料的发泡剂。

The pump takes, weak acid and alkali medium and so on the oil class,makes the bushing material with the perbunan; But requests in high to be wear-resisting, high strength and oil resistant, bears the benzene and so on under the condition works, then selects gathers the ammonia fat rubber to make the bushing material.

抽汲取油类、弱酸和碱等介质，用丁氰橡胶做衬套材料；而要求在高耐磨、高强度和耐油、耐苯的等条件下工作，则选取聚氨脂橡胶做衬套材料。

The original Wing Dragon Mine Screen Factory - specializing in the production of stainless steel welding-type ore screen, sieve slit Article films, sieve, sieve basket, sieve vibration welding, composite mesh, high frequency sieve, sieve cones, curved screen, jig plate, punch plate, polyurethane plate, rubber plate section bar, stainless steel sets of Nets, nylon mesh sieve tablets high intensity, and building welded mesh, steel grating Net, Net oil with steel, aluminum Nets, Nets punching plate, welded wire mesh, stainless steel net, vapor-liquid filters, welding filter cartridges, stainless steel sintered Net, filter plate, metal filter.

河北省安平县永龙矿山设备有限公司原永龙矿筛网厂）-专业生产不锈钢熔接式矿筛网、条缝筛片、筛板、筛篮、焊接式振动筛网、复合筛网、高频筛、圆筒筛、弧形筛、跳汰机筛板、冲孔筛板、聚氨脂筛板、橡胶扎条筛板、不锈钢网套、尼龙筛片等高强度筛网，及建筑焊接网片、钢格板网，石油用钢板网，铝板网、冲孔网板、电焊网、不锈钢网、汽液过滤网，焊接过滤筒、不锈钢烧结网、过滤盘、金属滤芯。

The foamed polyurethane casting line is mainly composed of scissors lifting table, multilayer double-acting press, door press, vacuum cups, premixing table, pressuring machine, measuring device, reaction vessel and other injection equipments.

聚氨脂泡沫浇注生产线主要由剪刀提升台，多层双作用压机、真空吸盘、预混台、增压装置、计量装置、反应容器等注塑设备组成。

The series product of produce include; The environmental protection foam rubber the paint, high class gathers the ammonia fat paint, the furniture profession paint, metals paint, the special kind craft paint, prevent fire two use repair the flexible coating, refractory coating of paint, texture, not poisonous and solid turn, have no a hard tube gum, floor gum, glass gum, all-powerful gum appropriation detergent, fragrance extract, net prints the printing ink, and the atom ash, familiar gum powder, wool brush various assistance materials of etc..

生产的系列产品包括：环保乳胶漆、高品位硝基漆、高级聚氨脂漆、家具专业漆、金属漆、特种工艺漆、阻燃两用装修漆、质感弹性涂料、防火涂料、无毒固化剂、万能胶、鞋胶、PVC硬管胶、地板胶、玻璃胶、万能胶专用清洁剂、香精、网印油墨，以及原子灰、熟胶粉、美纹纸、羊毛刷等多种辅助材料。

Through structural reform, is now a four specialized production plant, installation, sales companies and machine, electrostatic spraying, polyurethane foam supporting the three workshops, two assembly lines; established for product design, development The CAD computer workstations, for product performance quality testing, thermal, wind motor balance of the test center of production and management system.

公司通过体制改革，现已形成四个专业化生产厂，安装公司、销售公司及机加、静电喷涂、聚氨脂发泡三个配套车间，两条装配生产线；建立了用于产品设计、开发的CAD微机工作站，用于产品性能质量检测、热工、风机动平衡检测中心的生产经营体系。

The company has 200 weaving machines, 5 sets of Twister, Twisting Machine 6 Units, polyurethane two sets of tire processing equipment.

公司拥有织布机200台，倍捻机5台套，捻线机6台，聚氨脂胶轮加工设备两套。

We are Bao'an District of Shenzhen City Rundong Cots Machinery Co., Ltd., special to you recommend the company's various types of printing Cots, industrial rubber and polyurethane plastic drum roll, and other products.

我们是深圳市宝安区润东胶辊机械有限公司，特向您推荐本公司生产的各类印刷胶辊，工业用橡胶滚筒及聚氨脂胶辊等产品。

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