回流

High drawing rate:Because the constant supplement of solvent of the hot backset current, make crude drugs and sllvent remain

提取率高：由于热回流的新溶剂不断的补充，使药材与溶剂始终保持较高浓度梯度，加快了药材有效成份的溶出，提取较为安全。

According to practical experience and study for many years, hot condensation liquid of backset current invite within 2.5-3 hours drawing former solvent of pot all change once, can keep a higher density to the draw pot crude drugs in unit time.

回流的热冷凝液约在2.5-3小时内将提取罐原溶剂全部更换一次，使提取罐内中药材组成中溶质浸出液中的溶质在单位时间能保持一个较高的浓度差，既继承了传统提取罐二次提法的工艺，又节省了50％溶剂投放量。

By relatively test the law confirming the best method to draw Saikosaponin sample of root of Chinese thorowax is: 5% methyl alcohol of ammonia water backset current 4, water saturation straight cube alcohol extract 20ml / time.

用比较实验法确定了提取柴胡皂苷样品的最佳方法为：5%氨水甲醇回流4小时，水饱和正丁醇萃取20ml/次。

Many influential factors of this method were analyzed. The experimental results indicated: the mole ratio of urea, sodium hypochiorite and sodium hydroxide was controlled within the range of (1.10~1.12):1:(2.30~2.42), the temperature of low temperature reaction must be controlled under 20℃, the high temperature should intensify fast to backset current temperature while reacting and the time for raising temperature only within 5min, and the yield of hydrazine hydrate can be reach about 75.1%.

实验分析了尿素法生产水合肼的各种影响因素，实验表明，尿素、次氯酸钠与氢氧化钠的摩尔比为(1.10~1.12)：1：(2.30~2.42)，低温反应温度控制在20℃以下，高温反应阶段快速升温至回流后反应5min左右时，水合肼收率可达75.1%左右。

SS-JM series colloid mill can accord to users' special requirement offer the one multi-functional but idling type operation. The machine is sealed and has not kept in touch with the medium definitely. Machinery seal can use longevity long of new generation hygiene grade and colloid rub (the patent for invention of China) and has developed another kind of closed colloid rub. Its all closed circulated backset current system makes the supplies carry on the multi-functional grind, emulsification, homogeneous, crush, disperse, and stir, processing that mix in the airtight environment.

SS-JM系列胶体磨擅长于可根据用户的特殊要求提供多功能的可空转式运作，机封与介质绝无接触，机械密封使用寿更长的新一代卫生级可空转式胶体磨，以及研制了另一种封闭式胶体磨其全封闭式内循环回流系统，使物料在密闭的环境中进行多功能研磨、乳化、均质、粉碎、分散、搅拌、混合的加工。

Machinery seal can use longevity long of new generation hygiene grade and colloid rub (the patent for invention of China) and has developed another kind of closed colloid rub. Its all closed circulated backset current system makes the supplies carry on the multi-functional grind, emulsification, homogeneous, crush, disperse, and stir, processing that mix in the airtight environment.

以及研制了另一种封闭式胶体磨其全封闭式内循环回流系统，使物料在密闭的环境中进行多功能研磨、乳化、均质、粉碎、分散、搅拌、混合的加工。

Its all closed circulated backset current system makes the supplies carry on the multi-functional grind, emulsification, homogeneous, crush, disperse, and stir, processing that mix in the airtight environment.

以及研制了另一种封闭式胶体磨其全封闭式内循环回流系统，使物料在密闭的环境中进行多功能研磨、乳化、均质、粉碎、分散、搅拌、混合的加工。

This backwash current is governed by volume of water and flow.

回流的水流是由水量及流动决定的。

Surely, then, the backwash squeeze is not the only way of dealing with an annoying enemy trump.

是啊，回流挤牌不是唯一解决麻烦的将牌的方式。

Here is a further example of a Vienna Coup backwash.

这是另一个不同的维也纳谱回流挤牌。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。