双极的

Any heteronuclear diatomic molecule must have a dipole moment since its two ends are different.

任何异核双原子分子必然具有偶极矩，因为它的两端是不同的。

The tumors with double DNA heteroploidies (3cases) were much more malignant in nat- ure than those with diploidy + heteroploidy.

双异倍体干系肿瘤（3例）的性质极恶，2倍体加异倍体肿瘤的行为略好。

Spinosad is a recently developed macrolide that has high efficacy hi killing Lepidoptera, Diptera, and Thysanoptera.

多杀菌素是近年来新开发的大环内酯类杀虫剂，对鳞翅目、双翅目和缨翅目害虫有极好的灭杀效果。

Results The 14 ALD patients were boys, the symptoms occurred slowly from 1 to 13 years old. The clinical manifestations of all the ALD patients were mainly mental retardation and disturbances of movement of extremities, 9 cases had visual disorders, 6 cases had auditory disorders and 13 cases had dysarthria, 5 cases had seizure and 6 cases had increased skin pigmentation. The level of plasma very long chain fatty acids in 5 csaes were increased at some degree. The brain CT from 2 cases and MRI from 12 cases showed butterfly-like focus in periventricle areas in the white matter bilaterally. Lace-like high intensity lesions were observed in 3 cases.

结果 本组14例ALD患者均为男童，起病年龄1~13岁，缓慢起病，临床上均有不同程度的智力障碍和肢体活动障碍，其中9例视力下降，6例听力下降，13例言语不清，5例有抽搐发作，6例皮肤色素沉着；5例血浆极长链脂肪酸不同程度增高，2例头颅CT、12例头颅MRI显示双侧脑室三角区周围白质对称分布的蝶形病灶，3例增强扫描示部分病灶周围花边样强化条带。

Two-photon excitation provides potential application in the detection of single biomolecules and medical diagnosis.

前言：近年来，在生物医学研究领域中，一种独具三维处理能力和极高分辨本领的技术———双光子技术正悄然显示出其变革性的应用潜力。

With dark hair, and eyes to match, my mother, Hope, was attractive and fun-loving.

我的母亲霍普有着深色头发和一双与其相称的眸子，她个性极具吸引力，富有情趣。

The step response and impulse response of homogeneous earth half space, marine double half space and four-layer earth models to horizontal electric dipole source were computed in this paper. A concept of transient impulse time was put forward.

本文计算了水平电偶极子源均匀大地半空间，海洋均匀双半空间和海洋四层模型的阶跃响应和冲激响应，提出了瞬变冲激时刻的概念。

He was dressed in an ill-fitting ready-made suit and was wearing a pair of hard shoes.

他穿着一套极不合身的现成西服，脚蹬一双很硬的皮鞋。

First, this thesis introduces the basic structure, static characteristic, operation principle of Doubly Salient Electro-Magnetic Motor and Generator.

本文首先简要介绍了电励磁双凸极电机的结构、数学模型以及电动和发电工作的原理。

Further, it is found that the limit curve is a uniform rational cubic B-spline curve or the curve's control polygon when its tension parameters tend to zero or infinity respectively.

Barsky[4 ] 将具有张力参数样条的双曲样条曲线引入CAGD ，称之为张力样条参数曲线，并证明了这种曲线是一类泛函问题的极小解。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷