半

There are large niche overlaps between the shrub and semi-shrub species and among the herbaceous plants of which the overlap between H. scoparium and A. ordosica and between Chloris virgata and Bassia dasyphylla were 0.7192 and 0.8622, respectively, and this indicates that they have greater ecological similarity thus possessing strong competitive capacities in community succession; there are smaller niche overlaps between A. ordosica and various herbaceous plants and thus they can stably co-existed.

灌木、半灌木种之间、草本植物与草本植物之间的生态位重叠值较大，其中花棒与油蒿、虎尾草与雾冰藜之间的生态位重叠值分别为0.7192和0.8622，这表明二者之间有较大的生态相似性，从而在演替过程中具有较强的竞争作用；而半灌木油蒿与各草本植物之间的生态位重叠值很小，它们能够实现稳定共存。

A biform crystal; the biform body of a mermaid.

两形晶体；美人鱼的身体是半人半鱼的。

In patients with a large superior segmental bone deficiency, the resulting acetabular recess is elliptical rather than hemispherical, and a bilobed or oblong implant can be used instead of a large structural graft or excessiely high placement of a hemispherical component Fig.

髋臼上方有大块骨缺损的病人，其髋臼窝变为椭圆形而非半球形，因此可用双叶形或椭圆形假体替代大块结构性骨移植，或在高位植入半球形假体（图7－40，A）。

Three kinds of CpTiCl had been synthesized when was catechol , 2, 2′-biphenol , or 2, 2′-binaphthol , respectively. In the case of CpTiCl〓, was 8-hydroxylquinoline , 2-methyl-8-hydroxyl-quinoline , and 8hydroxyl-5-nitro-quinoline , respectively.

研究表明，这三类半茂钛配合物在助催化剂MAO作用下，于30℃、0.1MPa乙烯压力下均可催化乙烯聚合，并显示较高的活性，远高于未引入非茂配体的CpTiCl〓及不含茂环的相应非茂配合物的活性，这说明同时含一个茂配体和一个非茂配体的半茂配合物是烯烃聚合的优良催化剂。

One thing leads to another and that evening Antoine informs his friends that he has been taken on as a trainee by the famous Blady Detective Agency, which is familiar to most Parisians because of a subway poster showing the black silhouette of a man with his face half-concealed behind a newspaper.

事情一件接着一件，当天晚上安托万告诉他的朋友，他已经被著名的侦探社雇为实习生了，这家侦探社很多巴黎人都认识因为它的一张地铁里的广告画着一个用报纸遮着半张脸，只剩漆黑的半张脸部轮廓的男人。

Key Laboratory of Veterinary Parasitology of Gansu Province/State Key Laboratory of Veterinary Etiological Biology/Lanzhou Veterinary Research Institute,Chinese Academy of Agricultural Sciences,Lanzhou 730046, China）Abstract: With cDNA from salivary gland of semi-engorged adult female Boophilus microplus as tester and cDNA from starved adult female B.microplus as driver,a subtractive cDNA library of salivary gland of female B.microplus was constructed using suppression subtractive hybridization and T/A cloning.

以我国微小牛蜱半饱血雌性成蜱唾液腺cDNA为检测子Tester，饥饿雌性成蜱cDNA为驱动子，采用抑制消减杂交技术和T/A克隆技术构建了微小牛蜱半饱血雌性成蜱唾液腺消减cDNA文库。

After half and hour's slow progress one reached the heights of the Lion's Leap and the return journey could be made in one and a half hours over Boyang Ridge.

经过一个半小时缓慢的前行，就到达了五老峰，往回走1个半小时的路就到鄱阳山了。

ASES is 59% identical to Artemisia cyclase cDNA clone cASC125, 50% identical to epi-cedrol synthase from A. annua, 48% identical to amorpha-4, 11-diene synthase from A. Annua, 39% identical to the 5-epi-aristolechene synthase from tabacco, 38% identical to vetispiradiene synthase from H. Muticus, 41% identical to the δ-cadinene synthase from cotton. The coding region of cDNA was cloned into procaryotic expression vector pET30a and overexpressed in E. coli BL21 (DE3). The cyclase proteins extracted from bacterial culture were found largely in the insoluble protein fraction. The tissue specific expression patterns were analyzed by RT/PCR.

克隆的倍半萜合酶氨基酸序列与烟草马兜铃烯合酶、莨菪岩兰螺旋二烯合酶、棉花杜松烯合酶的一致性分别为39％，38％和41％；与青蒿柏木脑合酶、紫穗槐二烯合酶和一个推测的倍半萜合酶克隆cASC125的一致性为50％，48％和59％。cDNA编码区序列被克隆进原核表达载体pET-30a，并在大肠杆菌BL21（DE3）中诱导表达，但过量表达的蛋白主要是以不溶性蛋白形式存在。

Methods: Hapten of dimethoate was synthesized, then it was conjugated to bovine sera albumin and ovalbumin to prepare immunogen and coating antigen respectively by carbodiimide method.

采用生产乐果的中间体硫磷醋与l， 4-二氨基丁烷反应合成乐果半抗原，利用碳二亚胺法，将半抗原与牛血清白蛋白及卵清蛋白偶联，分别制备免疫原和包被原。

125I-HGF was subcutaneously injected after ahdominally injecting cerulein to induce mild acute pancreatitis while normal saline injection as control, and then the sera and the pancreas were harvested to measure the HGF concentration at different time after the HGF administration.

结果：HGF在正常小鼠血液及胰腺组织中呈先快后慢的代谢特征，后期半减期约为130 min；复制MAP后HGF在模型组小鼠血液中的后期半减期约为195 min，较对照组延长（P＜0.01）；模型组胰腺HGF含量高于对照组（P＜0.01）。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！