查询词典 distillation

The height of plant was measured every 15 days. The essential oil of the lemon verbena was obtained by steam distillation in different period of growth and analyzed by GC and GC-MS.

测定了株高变化，用水蒸汽蒸馏装置提取精油，用气相色谱仪和气相色谱质谱联用仪分析了不同时期精油含有率与成分的变化，对比不同器官、不同部位和不同采样时间的精油含有率的差异。

Meanwhile,they are widely assembled with the ultrasonic bottle washing machines of the pharmacy,tunnel baking network,rubber plug cleaning machine,fold filter core cleaning and distillation,blending of traditional Chinese medicine and crushing equipments.

同时广泛配套于制药机械中的超声波洗瓶机、隧道烘箱网带清洗机、胶塞清洗机、折叠式滤芯清洗机及中成药的提取、混匀及粉碎设备。

Methods Under the acid condition, fluorine could be separated by distillation, then fluorine is absorbed by washing liquid. The electricity lead detection-ion chromatogram with Ionpac AS14 column was employed to determine the content of fluoride, 3.5 mmol/L of sodium carbonate-1.0 mmol/L of soda as the washing liquid at 1.2 ml/ mm.

氟在酸性条件下，蒸馏分离，蒸出的氟化氢被淋洗液吸收，采用电导检测－离子色谱仪和IonpacAS14色谱柱，3.5 mmol/L碳酸钠－1.0 mml/L碳酸氢钠为淋洗液，流量为1.2 ml/min，样品及标准系列在酸性条件下经水蒸气蒸馏－吸收，直接进样测定。

The reaction was driven to completion by azeotropic distillation of water using a carrier solvent.

改性反应是在有机分散剂中进行，并通过回流分水使反应充分。

Significant processing steps can include: a phase changes involving either the desired molecule or the solvent, inert carrier or vehicle, e.g., dissolution, crystallization, evaporation, sublimation, distillation or absorption; b a phase separation such as filtration or centrifugation; c any chemical change involving the desired molecule, e.g., removal or addition of water of hydration, acetylization, formation of the salt; d an adjustment of the solution containing the molecule such as adjustment of pH or pO2; e a precision measurement of contained or added BPC components, in-process solutions, recycled materials is performed, i.e., weighing, volumetric measuring, optical rotation, spectrophotometric determinations, etc.; and f changes occur in surface area, particle size, or lot uniformity, e.g., milling, agglomeration, blending.

意义较大的步骤可能会包括：a相变化，包括指定分子或溶剂，惰性载体或溶媒，如溶出作用，结晶，蒸发，升华，蒸馏或吸附；b相分离，如过滤或离心；c涉及指定分子的任一化学变化，如结晶水的除去或添加，乙酰化作用，成盐；d包含分子的溶解的调节，如调节pH或pO2；e 含有或添加原料药组分，过程内溶液，回收物料的精密测量，如，称重，体积测量，旋光度，分光光度测定，等和f 表面，粒度，或批一致性的变化，如磨碎，凝块，混合。

Medthods:Volatile oil of chive was extracted by means of water-vapour distillation and its chemical components were assayed by capillary gas thromat ography-mass spectrometry.

用水蒸气蒸馏法提取韭菜中韭菜的根茎、韭菜叶、韭菜花挥发油，并用毛细管气相色谱/质谱法，鉴定出其挥发油的化学成分。

This product is by the hydrocracking 3# white fuel oils, becomes the use after the distillation cutting purification.

本产品是以加氢裂化3#白油料，经蒸馏切割精制而成用途。

This book offers a distillation of Wittgenstein's thought in a mere 50 pages.

这本书在不过五十页的篇幅里向人们提供了维特根斯坦思想的精髓。

The destructive distillation of wood to give methanol is the root of its common name - wood alcohol.

产出甲醇的木材分解蒸馏是甲醇普通名称的根源。

"Methyl alcohol wood alcohol Once produced by destructive distillation of wood, it is now usually made from the methane in natural gas."

曾经将木材进行破坏性的干馏来生产甲醇，现在通常用天然气中的甲烷来制

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％。