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- METHODS:The steam distillation was used to prepare the volatile oil from the rhizome and root of Acorus calamus L . 方法采用水蒸气蒸馏法分别提取水菖蒲根状茎和根挥发油,采用气相色谱-质谱联用技术进行分析鉴定。
- The volatile oil was extracted from Cinnamomum wilsonii leaf and twig with the steam distillation and the yield was 1.1% and 0.7%(V/W), respectively. 摘要采用水蒸气蒸馏法从川桂叶和嫩枝中提取挥发油，出油率分别为1.;1%25和0
- The experiment method of extracting nicotine from tobacco leaf is described in this paper with the steam distillation device which we have designed. 本文描述的是通过自己设计的水蒸气蒸馏装置,从烟叶中提取烟碱的实验方法。
- OBJECTIVE:To analyze and compare the chemical constituents of volatile oil of rhizome and root in Acorus calamus L.METHODS:The steam distillation was used to prepare the volatile oil from the rhizome and root of Acorus calamus L . 目的分析比较水菖蒲根状茎和根挥发油化学成分。 方法采用水蒸气蒸馏法分别提取水菖蒲根状茎和根挥发油,采用气相色谱-质谱联用技术进行分析鉴定。
- Pure floral waters are by products of the steam distillation process of essential oils. Floral water is 100% natural hydrosol used after face wash to hydrate, refresh and balance skin conditions. 花卉水 是精华油蒸馏过程中溶于水的天然产品，清洁面部后可喷上适合的花卉水，使肌肤回复清爽，补充水份。
- To prepare Muxiang shunqi oral liquid,steam distillation,diacolation and decoction methods were adopted and compared. The results show that the steam distillation is the best process. 采用水蒸汽蒸馏提取法、渗漉法和煎煮法制备木香顺气口服液。通过成品的理化性质及薄层色谱的比较,确定水蒸汽蒸馏提取法为最佳工艺,并确定最佳流程。
- The steam tug takes canal boats and barges in tow. 驳船后面拖着小艇和平底船。
- The result shows that the Quick Distill Extraction,fast and simple,is superior to the circumfluence extraction and the steam distillation. 结果表明,快速提取法比回流提取法、水蒸气蒸馏法提取效率高,快速简便。
- The mirror fogged up with the steam. 镜子因蒙上水气而模糊不清。
- The steam has fogged the mirror. 水汽布满了镜子。
- The steam escaped with a loud hissing noise. 蒸汽发出很大的嘶嘶声冒了出 来。
- The steam locomotives were superseded by diesel units. 蒸汽机车已被柴油内燃机车所取代。
- Prior to entering the nozzle, the steam is at high pressure. 在进入喷嘴之前，蒸汽处于高压状态。
- The steam found a vent through a crack in the pipe. 蒸气从管子的裂缝漏出去。
- In the steam bath. I sweated off two pounds in an hour. 洗蒸汽浴时，我在一小时内就因出汗而使体重下降了两磅。
- We couple the name of Watt with the steam engine. 我们把瓦特的名字与蒸汽机联系在一起。
- The window has clouded up because of the steam. 窗户因水蒸气已变得模糊不清。
- The steaming cake was a bait for the hungry boy. 那热气腾腾的蛋糕对这个饥饿的男孩是个诱惑。
- Methods The volatile oil was obtained from PPFA by steam distillation. 方法采用水蒸气蒸馏法从枳壳中提取挥发油。
- The steam condenseed into waterdrops. 水蒸气凝聚成水滴。
