既...又...

It often happens that declarer lacks the wherewithal both to draw trumps and to ruff out the side suit.

它常常发生在庄家既需要清光将牌又需要将吃边花的牌局中。

Preventive acupuncture has the characteristic of benign stimulating source, which can mobilize the body potential, start up internal protecting mechanism to improve the ingenerate ability of defending disease and meeting an emergency and will not produce side-effect of tissue"s and organ"s injury or functional decompensate.

其具有良性刺激源的特点，既调动机体的潜能，启动机体内源性保护机制，提高机体自身内在的抗病与应变能力，又不造成组织器官的损伤或机体功能代谢障碍等副作用。

After UV irradiation and the decomposition of diazonium group, the films' linkage between layers was converted to covalent bond and the stability of the films was improved greatly.

根据重氮基团还可以与聚负离子形成静电作用力的特点，分别在水和有机介质中，自组装形成了多层复合超薄膜，膜的层间作用力既有离子键又含有氢键，并且在紫外光照射下，两种作用力都转化为稳定的共价键。

A number of engineering practices and studies have proved that this method is a good one to decontaminate polluted water, which not only is effective, but also can protect ecology environment and avoid secondary pollution.

大量的工程实践及研究证明，该方法是一项既行之有效又保护生态环境、避免二次污染的净化污染水体的好方法。

Are the place to appear decrepitude firstly, it because that mtDNA in these place is more and easy to be damaged.

现在，已经在多种疾病和和衰老过程中发现了mtDNA的突变，而且这种mtDNA构成的改变，可以引起代谢功能的衰变，后者既表现为ATP合成降低，导致细胞以至整个机体生理功能的降低；又表现为自由基等氧化剂的积聚，并成为前者衰变以及全身组织结构衰变的主要原因。

By using inductive method and deductive method, we can help students master the grammar and achieve development in intelligence, abilities and thinking.

在语法教学中，使用归纳法和演绎法，使学生既获得了语法知识和技能，又能使学生在智力、才能和思维方面得到发展。

The structure of culture contains surface and deep-seated layers.

文化的构成既有表层的，又有深层的。

I was always wondering, why we should defame lawyers recklessly while we are eager to get help from them .

我曾经苦苦思索：为什么大家既要苦苦寻求律师帮助，同时又要对律师大加诽谤。

The maximum times for deferral are 2 and every deferral shall not last for more than 3 months.

既不开工又不申请延期或者超过延期时限的，施工许可证自行废止。

Besides, because of diversity of biochip image, the shape of some spots can not be uniformly circular. Solved the problem of coarse segmentation and modification of deflexion angle, a method of tracking local spots profile—Template snake model has been proposed in the paper, it can recognize the target from roughness to precision step by step, so to guarantee the precision and efficiency of segmentation.

此外，由于生物芯片多样性特点，某些芯片样点外形并不一定是简单的孔径问题，本文在比较彻底地解决了样点粗分割及偏转角校正后，提出了局部区域的样点轮廓跟踪方法——Template snake模型，实现由粗到精的宏状多目标分层识别策略，既保证了样点分割的正确率，又加快了执行速度。

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。