两层的

Solani. The extract was further separated into two parts and one part separated by ethyl acetate while the other was separated by petroleum ether. Based on the inhibition experiment against R. solani, ethly acetate extract has a rather strong effect on R. solani with 89.70% inhibition rate and 15.52 mgmL^(-1) EC 50.The effect of petroleum ether extract on R. solani is relatively weak. The former was again divided into five parts in silica gel column, of which the second part significantly inhibits R. solani. During the periods of 24 and 48 hrs, the inhibition rate of the second part on R. solan is respectively 89.58% and 80.36%.

结果表明：鸭粪乙醇提取物对水稻纹枯病菌有抑制作用，24h内最高菌丝生长抑制率和EC50分别为88.64%、26.11mgmL^(-1)；鸭粪乙醇提取物经萃取分离得到石油醚和乙酸乙酯两种组分，其中石油醚组分抑菌效果较弱，乙酸乙酯组分抑菌能力较强，其对水稻纹枯病菌抑制率为89.70%，EC50为15.52mgmL^(-1)；对乙酸乙酯组分进行硅胶柱层析分离得到5种流份，其中第2流份有显著抑菌活性，在24h和48h内对水稻纹枯病菌的抑制率分别为89.58%和80.36%。

Two spall planes were observed in the soft recovered sample for the high stress triangular wave experiment.

在经过高应力三角形波实验的软回收样品上，发现了两个层裂面。

Squaw Valley 1960: Four identical three-story apartment buildings, two of which still stand, modified into condominiums.

1960年斯阔谷：四个相同的三层公寓楼，其中有两个仍然存在，修改成公寓。

Guagzhou Chenliji Pharmaceuticel Factry,Guangzhou,Guangdong 510180）Abstract To establish a method for the identification of storax and the determination of cassia acid in storax by HPLC. Methods: TLC and HPLC were applied.

HPLC在适当的条件下，采用色谱峰检出法，TLC采用硅胶GF254薄层板，ψ(石油醚∶正己烷∶甲酸乙酯∶甲酸)=10∶30∶15∶1为展开剂，荧光及硫酸乙醇喷雾两次检出；定量采用ODS C18色谱柱（4.6 mm×150 mm×5μm），流动相：ψ=58∶42∶0.3，检测波长271 nm，流速：1 mL/min。

There are two orientations of school curriculum management: stratified model and professional model.

科层模式与专业模式是学校课程管理的两种取向。

The isolation and purification of β-NGF form mice submaxillary gland werecarried out by using CM-FF ion exchanger.

本文采用国产阳离子交换树脂CM－FF，两步柱层析从小鼠颌下腺中分离、纯化神经生长因子，并与Whatman公司的CM-C（CM32）离子交换树脂进行了比较。

Hypataxis形合）:the dependent or subordinate construction or relationship of clauses with connectives;for example, I shall despair if you don't come.

雨是最寻常的，一下就是三两天。可别恼，看，像花针，像细丝，密密地斜织着，屋顶上全笼着一层薄烟。

That's why men's department is usually on the first floor of a department store, two inches from the door.

这就是为什么男士用品部通常位于百货公司的一层，距离大门只有两英寸。

That's why the men's department is usually on the first floor of a department store two inches from the door.

这就是为什么男士用品部通常位于百货公司的一层间隔大门只有两英寸。

That＇s why the men＇s departmentisusually on the first floor of a department store, two inchesfromthe door.

这就是为什么男士用品部通常位于百货公司的一层，距离大门只有两英寸。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。