不变化的

Objective :To investigate the effect of vagus on dispersion of atrial effective refractory period.

目的 ：用动物实验模拟快速房率来观察迷走神经对心房有效不应期离散度变化的影响。

In order to keep the lum of targets'surface invariable and not be affected to its variableness, we often tune it up with filter-patch(or density-plate) and spectrum-patch.

为了使摄象机靶面照度保持恒定，不受背景光变化的影响，系统常采用中性滤光片和光谱片进行调节。

A defective Latin verbal noun of the fourth declension, having very limited syntax and only two cases, an accusative in -tum or -sum and an ablative in -t or -s .

动名词：第四词形变化的不完全变形拉丁动名词，其句法结构十分有限，只有两种格，宾格形式为-tum 或-sum ，独立离格形式为-tu 或-su 。

Methods We ligated the perineal urethra of the adult female guinea pigs' and then performed punctio vesicae 6 weeks later, followed by a filling cystometry. And then we observed the bladder pressure, capacity changing and the probability of detrusor instability.

成年雌性豚鼠经会阴部尿道结扎，6周后行膀胱穿刺充盈性膀胱测压，观察膀胱压力、容量变化及逼尿肌不稳定的发生情况。

The Wilkins shelf may or may not have been the victim, ultimately, of climate change.

威尔金斯冰架可能是，或者也有可能不是气候变化的受害者。

After amylaceous classics modified, chemical structure produced change, have the property that native starch place does not have consequently.

淀粉经改性后，化学结构发生了变化，因而具有原淀粉所不具有的性能。

Thoracic surgery doesn't affect blood viscosity of patients. The anticoagulative drugs are not necessary to protect pulmonary embolism postoperation. We should select treatment according to the patients concrete conditions.

开胸手术后对血粘度变化的影响不大，对胸科手术病人预防术后发生肺动脉栓塞，不一定要常规地给予预防性抗凝等治疗，而应该根据病人具体情况考虑治疗方案。

From the Warring States Period to the Qin Dynasty, the ancient myths and the ways of searching longevity indicated that the"God"concept was equal to the"immortal"which emphasized that the athanasy of the life is a"divine"nature, unlike ordinary people. In the Han Dynasty, the immortal concept undergone a subtle change, the god was becoming closer to the"human"existence. After the establishment of the Taoism, The Eastern Jin Taoist scholars Gehong established the immortal concept of Taoism,and put the"God"downgraded to longevity who practicing the longevous knowledge,and even established a"Dixian"concept. This completed the transformation process of"Shenren"to"Dixian"concept.

从战国至秦代神话的内容和古人探求长生不死的方式来看，最初&神&和&仙&的概念是一致的，强调的是神的先天不死性，体现为不同于凡人的&神人&概念，汉时的神仙思想发生了微妙变化，神仙逐渐变为接近于&人&的存在，道教创立后，东晋的道教学者葛洪把先天的&神&降格为懂得长生术的&人&，并提出了&地仙&概念，完成了&神人&向&地仙&概念的转变。

They sometimes have unpleasant side effects such as bloating, mood changes, irregular bleeding and weight gain.

他们有时有不愉快的副作用，如腹胀，情绪变化，不规则出血及体重增加。

Clearly, exaggerating the threat of climate change is not an option.

显然，夸大天气变化的威胁不是个好选择。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。