使在外

Some compounds possessing chiral center themselves may be racemates and appear racemic phenomenon in the extraction and separation from medicine herbs, structure modification and chemical synthesis.

但是，由于含有手性中心的中药有效成分本身可能是消旋体、或者在分离提取、结构改造及化学合成时会出现外消旋化现象，使新药研制与开发中面临对映体成分的分离制备、体内手性药物分析及对映体特异性药代动力学研究等重大难题。

The universal powder box includes one box with powder bin and cover, one stirrer inside the powder bin, one powder feeding roller in the outlet of the powder bin, one developing roller contacting with the powder feeding roller and one locking device for the powder box to be set in and taken out from the sensitive drum. The cover has one upper planar surface, and after being installed, the plane is located below one corresponding raised edge of the printer. In the roller end gear combination outside one side wall of the box, there are two with driving force driving position.

包括一个带有粉仓的盒体和盖，位于粉仓内的搅拌装置，一个位于粉仓出口处的送粉辊、一个与送粉辊接触的显影辊，及使粉盒能顺利置入或取出感光鼓盒的锁放装置，盖的上表面基本是一个平面，装机后该平面位于打印机对应盖下表面凸起的下缘之下，在盒体一个侧壁外的各辊端齿轮组中，有两个带有动力受口的驱动位。

After prostate was enucleated, purse-string suture of vesical neck was done with thick catgut, hung and fixed outside the skin, thus to completely separate the fossa of prostate from bladder, and reach the purpose of hemostasis by the self contraction of the fossa.

对83例前列腺增生患者行耻骨上前列腺摘除术中，在剜除前列腺后，用粗肠线作膀胱颈部荷包缝合并悬吊固定于皮肤外，从而使前列腺窝与膀胱完全隔离，依靠腺窝的自身收缩达到止血目的。

Regarding four phase-stepping method, the difference of new instrument is that the original instrument requires four quarter-wave plates and needs to set up eight different angular magnitudes, whereas the new one requires only one quarter wave plate and changes the angle of analyzers.

在三场架设中，有别於一般需四道光路和输出时的四分之一波板，并且只要调整检偏器之角度便可得到三张的包裹相位图；而四场架设里，也只需多一片输出时的四分之一波板，使其中两道光路的结果为圆偏光，此外，仍然只转动检偏器之角度即可，相较传统的四场，除了元件的简化外，角度设定也较简单容易；六场平偏则改善了一般平偏或圆偏只能单一取得主应力角或因四分之ㄧ波板所造成的影响。

For different configuration of the distributor,the flows of R134a outside the horizontal tube under different working conditions were simulated and calculated.

降膜式蒸发器是利用制冷剂管外蒸发达到与管内工质换热的目的，即冷媒介质在蒸发管内流动，与蒸发管外流过的制冷剂液体进行换热，使其蒸发，实现热量的传递。

By means of the plating technology and the system designed and made ourselves, we call them as the direct-heat evaporating roll-pulled with vacuum piston and the helix evaporating of straight heat-wire with the negative thermal specific resistance , the align polishing ring films and the separating ones of pure gold have been plated directly at the inner wall of the capillary of Sealed-off CO〓 laser.

简便有效地使器件的输出功率、光束品质、稳定性和使用寿命都得以提高的作用效果；分析了放电驱动催化机理及催化效果与器件参数、工作状态及其中的等离子体过程的对应关系，建立了数学模型，编程数值计算了放电管内正柱区中等离子体参数分布及其与器件工作外参数的关系；利用我们设计开发的直热式真空活塞卷拖和负阻直热丝螺旋蒸镀工艺及制作的系统，在封离型CO〓激光器毛细管玻璃内壁上直接镀制出了单质金的镜面环膜和离散膜，经理论分析和实验检验，指出美国专利4756000号的环金方案将导致器件工作特性的改变和恶化，降低效率；肯定了正柱区边界部分场对建立良好的激光振荡的作用意义，明确提出了①作为高品质器件设计基础的弥散膜催化剂；②高斯管型弦驻波振动定型磨制、检测的新概念及相应的制备加工工艺；实际制出了管子，测定了其基本的工作特性和初期过程。

GK31030-5A High Speed Two-needle Collar Binding Machine,with the capacity of sewing heavy weight fabrics,equipped with binder and passing belt device,can make the belt automatically into the upper part tight and the lower part loose.it is available for collar binding and binding on one side of knitted underwears.

GK31030型高速中厚料三针绷缝机采用齿轮泵内循环自动润滑系统和可靠的密封方式，能保证在高速时的正常运转和衣料的洁净。装有独特的移动护针机构和上轴外支座，使其增强了缝厚能力。具备基本缝、单边压平缝和拼接缝的双面装饰缝纫功能。

In case lift users are stranded in a lift due to failure of software or failure of electricity, lift main tenance workers come to their rescue as soon as they are informed. First, power supply is cut off, lift traction engine clutch is loosened and manual winding is performed by two persons.

在乘客电梯的使用过程中，因电梯软、硬件故障或电网故障，使电梯乘客被困于电梯中，通常情况下，电梯维保员接到被困的信息时，进行人工救援：首先把外电网切断，将电梯曳引机抱闸松开，进行人工盘车，此时必须两人配合才能完成。

The most suitable explants for in vitro growth were shoot-tips and stem segments from sprouting cutting which were plugged in water or in vermiculite under weak light more than 24 h.

最适合的外植体是新切下的枝条插入含有蛭石和充足水的营养钵中24h以上，使其在弱光下迅速长出嫩枝的茎切段和茎尖。

Running, the screw pump cylinder outer surface and inner wall formed between the layer of oil film prevents direct contact between the metal, so screw tooth wear significantly reduced.

在运行中，螺杆外圆表面和泵缸内壁之间形成的一层油膜，可防止金属之间的直接接触，使螺杆齿面的磨损大大减少。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。