交替地

Two oligosaccharides, a hexasaccharide fragment of group E Streptococcus polysaccharide and a tetrasaccharide repeating unit of E. coli O7: K98: H6, consisting of α-(1→2)-and α-(1→3)-linked rhamnose backbones were synthesized in a regio-and-stereoselective manner.

以三氯乙酰亚胺酯为供体，不保护或部分保护的糖为受体，成功地合成了以α-（1→2）-和-α（1→3）-交替连接的鼠李糖为主链的GroupE Streptococcus六糖和E.coli O7：K98：H6四糖。

This generator adopts PSA transforming absorpion,which uses carbon molecule to separate Oxygen and Nitrogen from air. It transfers compressed air,which is originated from air source, into absovbing untis formed by two tower after oil removing, drying, filtering, purifying of the air. The compessedair generates Nitrogen when it is transformingly absorbed in one tower, then it is sent to another tower for regeneration. It alternately circulates between two towers, which can unceasing achieve 98%-99.9% of pure and cheap Nitrogen..

本设备采用PSA变压吸附原理，利用碳分子筛在压力变化时具有分离空气中氮的能力，以空气为原料，将压缩空气经除油、干燥、过滤等净化处理后，送入双塔组成的吸附组件，压缩空气在一塔内经加压吸附后产生氮气，而另一塔在解吸再生，两塔交替循环，即可不断地得到纯度为98－99.9%的廉价氮气。

Shrubs, usually aerial hemiparasites on other seed plants, often spreading along host by runners, more rarely terrestrial root-parasitic shrubs or trees, nodes not articulated, glabrous or hairy, hairs often stellate or verticillate. Leaves opposite or alternate, stipules absent; petiole often indistinct; leaf blade simple, usually pinnately veined, margin entire.

灌木，通常半寄生在其它种子植物的树上，通过匍匐茎在寄主身上延伸，很少为根寄生的地生灌木或乔木，节没有关节，无毛或有毛，通常为星状毛或具毛轮，对生叶或交替，托叶无；叶柄不明显；单叶，通常羽状脉，边缘全缘。

On Malastare, the Dugs are arboreal beings, brachiating among the canopies with alarming speed.

在马拉斯代尔星，达格人栖息在树上，他们双臂交替，飞快地攀缘于树冠层中。

Speed, the instructions for a "warm and rough places," fall into the middle of the first B flat minor, in the background of a heavy sound, trumpet and violin alternately.

加快速度后，指示为&热情而粗犷地&，进入降B小调的第一中段，在沉重的音响背景上，小号与小提琴交替进行。

The effect of nitrogen source, initial pH, quantity of incubated in flask, culture temperature and time on producing chitinase of Pseudoalteromonas H7 were studied systematically in this paper.

系统地研究了氮源、起始pH、培养基装量、培养温度和时间等因素对交替假单胞菌H7产甲壳素酶的影响。

They listened to the rise of this flood of men. They heard the swelling noise of three thousand horse, the alternate and symmetrical tramp of their hoofs at full trot, the jingling of the cuirasses, the clang of the sabres and a sort of grand and savage breathing.

他们听见那三千匹马的声音越来越大，听见马蹄奔走时发出的那种交替而整齐的踏地声、铁甲的磨擦声、刀剑的撞击声和一片粗野强烈的喘息声。

Gray mold of epidemic disease of Chinese cabbage soft rot, green pepper, tomato is alternant indulge in wilful persecution, the dish in the ground rots is.

白菜软腐病、青椒疫、西红柿灰霉病交替肆虐，地里的菜一烂就是一片。

Machine using a unique three-degree swing, rock principle of rotation and translation to produce strong alternating impulse movement, continuously promote the mixed material, the vortex generated by a change in the energy gradient, which can produce excellent mixing.

该机利用独特的三度摆动，平移转动及摇滚原理，产生强力的交替脉冲运动，连续不断地推动进行混合物料，其产生的涡流具有变化的能量梯度，从而能产生出色的混合效果。

The closer their kinships are, the higher the probability of their genes to be identical and the more the assistance, contributions and sacrifices would be given to each other.

自然选择会保留那些在世代交替中能最大限度地把自身基因或与自身相同基因传递给后代的个体，即广义适合度最大的个体。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。