精制的

Premise Liquefied petroleum gas is derived from oil gas, natural gas, the gas production of refinery and petrochemicals. The main components are dimethylmethane, propylene, butane, butylene and such low class hydrocarbon. It's a gas with achromaticity and transparence; LPG is hardly dissolved in water, but dissolved in ethanol and aether, it can dissolve gas production, propagation oil and caoutchouc.

液化石油气（liquefied petroleum gas，LPG）是石油伴生气、天然气、炼油厂及石油化工厂的气体产品，经分离精制而来，其主要成分为丙烷、丙烯、丁烷、丁烯等低分子烃；无色透明，带有微弱的臭味；难溶于水，溶于乙醇和乙醚等，并能溶解石油产品，动植物油和天然橡胶。

Many processes were used to refine benzoic acid. Each process has its advantages and disadvantages and can be used in different production conditions.

苯甲酸精制方法有很多种，每种方法都有各自的优缺点，适用于不同的生产条件。

In order to solve the problem of low quality of potassium sulfate produced from potassium chloride and ammonium sulfate,refining preparation of potassium sulphate is studied.

为了解决氯化钾—硫酸铵法生产的硫酸钾产品纯度低的问题，对硫酸钾精制过程进行了研究。

In the picture all procedures need the handicraftsman purify it, and its color only involves black, white, ashy accent, therefore the folk and the style of archaize perform well.

画中所有程序都是有手工艺人精制而成，且色彩只有黑，白，灰调，所以画的民间性和仿古性表现处理的很好。

The quality of lubricant base oil can be characterized by its aromatic hydrocarbon content.

为测量润滑油基础油中芳烃含量的多少，表征油品的精制深度和质量，研制了在线紫外分析仪。

Based on the analysis to production data, it is pointed out that coking crude benzol should be further pre-distilled to effectively remove the high-boiling-point composition before entering the hydrogen-adding refining device.

通过对生产数据的分析，阐述了焦化粗笨进入加氢精制装置前，需进一步预蒸馏，有效去除高沸点组分的必要性。

Brown sugar is cheapest, but is not so pure or sweet as white grades; powdered and confectioners' sugars are fine grades, pulverized, and, although seeming less sweet to the taste, are equally pure.

红糖最便宜，但不如白糖纯净甘甜。粉糖和精制细沙糖两者颗粒极细，粉糖尽管不大甜但纯度是一样的。

The optical system consists of glass reflector and divergent lens.

光学系统包括用玻璃精制而成的反光镜和发散透镜。

Liquid smoke equipment is a environment-friendly equipment with the liquid smoke flavor, Liquid smoke flavor is natural vegetation as raw materials, through the dry distillation, purification and refining, it has a good effect of preservation of the food and is widely used for raw and cooked sausage 、Ham、 poultry、meat、 fish、eggs and other products through boiling、frying 、baking or smoking.

液体烟熏设备是环保型设备，采用液体烟熏香料进行食品加工。液体烟熏香料是以天然植物为原料，经干馏，提纯精制而成，具有良好的增香防腐效果，广泛应用于生熟香肠，火腿，禽，肉，鱼，蛋等制品加工领域，对各种食品进行煎。煮。烘和熏等加工。

The use of mechanical seals, and do not have to fill, automatic mind, long life, wide parameters (pressure 15-30 kg / cm 2, temperature -50 ℃-450 ℃, to speed 0-500 /, media: conducting oil, steam , Water, air, etc.), is to address run, run, drip, leak, energy conservation, improve the working environment ideal for sealing components conducting oil rotating series of joint: in-house and the spherical shell after fine grinding process, using a spring 30WACr2VA tungsten chromium Vanadium alloy spring steel from refined, and the introduction of Japanese cedar trees machinery will be silver-impregnated graphite high temperature seals from the assembly, with the temperature effects, and life than the original, high-temperature range of 30%.

该产品采用机械密封，不必填料，自动同心，使用寿命长，参数广（压力15-30㎏/㎝2，温度-50℃—450℃，转速0—500转/分，介质：导热油、蒸汽、水、空气等），是解决跑、冒、滴、漏，节约能源，改善工作环境的理想密封部件（导热油系列旋转接头：壳体内部和球面经过精磨加工，弹簧采用30WACr2VA 钨铬钒合金弹簧钢精制而成，并引进日本柏木机械株式会银浸渍石墨高温密封件组装而成，具有耐高温之特效，而且使用寿命较原来中、低温系列高30％。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。