查询词典 contraction

With a gradual contraction longitudinal straight inlet port applied on the Multi-Point Injection natural gas engine, the concentration of natural gas and the pressure field in the intake manifold after the injection of natural gas were investigated, then in the following intake process the volocity vector map and mass distribution of natural gas inside the cylinder were also numerically examined.

在此基础上，考察了渐缩形直进气道应用於多点电喷天然气发动时，天然气喷射后进气岐管内的天然气浓度场和压力场，以及随后天然气-空气混合气在气缸内的质理分布和速度分布。

Though many observers define a recession as two consecutive quarters of contraction in the economy, NBER takes a broader view.

尽管许多观察家定义经济衰退依靠两个连续季度的经济萎缩，NBER看得更广。

The remaining 1% is present in body tissues and fluids where it is essential for cell metabolism, muscle contraction and nerve impulse transmission.

剩余的1 ％存在於人体组织和液体的地方是必不可少的细胞代谢，肌肉收缩和神经冲动传递。

Dogs need magnesium, potassium, and sodium for nerve impulse transmission, muscle contraction, and cell signaling.

狗也需要其余矿物质，如镁、钾和钠，来支持神经传导、肌肉收缩及提供细胞信号。

Calcium is essential in the body for many functions including bone formation, blood coagulation, muscle contraction, and nerve impulse transmission.

钙是宠物必不可少的，包括骨形成，血液凝固，肌肉收缩的功能很多，和神经冲动的传输。

Oxytocin , a nonapeptide, is mainly synthesized in the supraoptic nucleus and paraventricular nucleus of mammals' hypothalamus, and secreted into peripheral blood through neurohypophysis when stimulated to act on the target tissues like mammary gland or myometrium. Hence, the milk ejection or myometrium contraction is induced.

催产素是一种9肽神经内分泌激素，在中枢神经系统(Central nervous system，CNS)中，主要在下丘脑视上核(Supraoptic nucleus，SO)、室旁核(Paraventricular nucleus，Pa)的大细胞内分泌神经元中合成，并经神经垂体释放入外周血，作用于其靶组织如乳腺和子宫平滑肌等，发挥促射乳、促宫缩等作用。

In chapter one,the backgrounds and current situation of operator theory in Banach space are introduced and the preliminaries of Banach space are given.In chapter two,we study the existence and uniqueness of fixed point for decreasing strict-set-contraction operator in product space.Under the weak continuous condition,we obtain the existence and uniqueness of fixed point for decreasing operator and we give an application of these results; In chapter three,we get several positive fixed point theorems of decreasing operator and the existence and uniqueness theorems of positive fixed point for operator C=A+B,C=D-A in real Banach space where the order is decided by a normal cone; In chapter four,we obtained some existence and uniqueness theorems of fixed point for some mixed monotone operators in semi-ordered Banach space.

在第一章中，主要介绍了半序Banach空间非线性算子的研究历史背景、现状以及半序Banach空间中的预备知识；在第二章中，我们利用半序方法研究了Banach乘积空间中严格集压缩减算子不动点存在唯一性问题，在弱连续的条件下，得到了不动点的存在唯一性和迭代收敛性，同时，给出了它们的一些应用；在第三章中，我们建立了拟弱连续减算子的正不动点定理，并证明了算子C=A+B，C=D-A的正不动点存在唯一性定理；在第四章中，我们得到了半序Banach空间中混合单调算子的不动点存在性及唯一性定理。

Objective:To evaluate the possibility and accuracy of Doppler Tissue Imagingon assessment of normal myocardial activation and contraction sequence.

目的：探讨多普勒组织成像(Doppler Tissue Imaging，DTI)评价正常心肌激动起源及传导顺序的可行性及准确性。

Firstly, the preprocessed approach is similar to the anatomical one. The relation between surface of muscle and underlying structure is studied in order to comprehend the contraction of muscle.

步骤首先是采用类似于解剖学中采用的方法——分析肌肉表面形态与下垫结构之间的关系——理解并表现肌肉形状的变化。

In addition, lack of sleep will make your body tense, such a loose state so that a tight orbicular muscle contraction disorders, there twitching eyelids.

此外，睡眠不足会使你的身体紧张，这样一个松散的状态，这样一紧轮匝肌收缩失调，有眼皮跳。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。