有变化的

The changes of estrogen and progestogen in oestrus dogs is complex, but there is somehow a regularity which can provide theoritical evidence for breeding and inducing artificial oestrus in dogs.

犬体内雌、孕激素变化较复杂，但仍有一定的规律可循，这为犬的繁殖及人工诱导发情提供了理论依据。

Methods The changes of nine gninea pig's DPOAE by means of perfusion of artificial perilymphatic fluid with and without calcium ion were observed.

观察9只豚鼠（11耳）采用无钙和有钙的人工外淋巴灌流外淋巴腔后DPOAE的变化。

The first day was raining all the day except only half hour sunshine in the morning. I sat in front of the window of gazebo, looked at the polytropic mountain. It's a afternoon of reading and being in a daze.

第一天除了早上太阳吝啬地给了大概半小时的阳光后，就一直下雨了，我坐在露台，看著窗外每小时都会有不同变化的喀尔文德尔大山，看书发呆了一个下午。

It demonstrated good concurrent validity with other perioperative behavioral and psychometric scales and had good predictive validity with respect to postanesthetic emergence excitement.

它阐释了与其他围术期行为和心里测量范围的同时变化，并且与麻醉后出现兴奋有好的预测可靠性。

This is where you have to stop and reconnect with your goals to decide which is the better course.

每天我都会有新的作业，课程或者考试，我必须适应这些随时变化的情况。

Results The specificity and sensitivity of seral anti-PPD-IgG were 89.8%and 82.9%respectively, in which the positive rate showed little relationship with bacteria in the sputum and some association with the conditions of the disease.

结果 血清抗PPD-IgG诊断结核病的特异性为89.8％，敏感性为82.9％，其阳性率与痰菌关系不大，与病情变化有一定的相关性。

There are some basic researches on the changes blood pressure and breath after stimulating vestibular organ.

关于前庭系统受刺激后所引起的血压、呼吸等变化已有一定的研究基础。

Under the condition of poor effect of surmounting "statics with pitch-resistant",domestic scholar have made new concept —deviation control with high WOB .

大钻压动力防斜技术增加钻压引起钻柱屈曲，保特钻柱涡动，有井斜时使钻柱产生周期性变化的轴向附加力，无井斜时轴向附加力消失，克服了传统防斜技术中吊打的缺点，提高了钻井速度，达到了解放钻压的目的。

If we are to rise to the challenge of addressing climate change then we will need to be pragmatic and ambitious.

如果我们要应对气候变化的挑战，那么我们就必须务实并且要有成功的渴望。

We now have modern, precise instruments to evaluate this event, and because the site abuts a continent, we will be able to obtain dense spatial sampling of the changes it caused.

我们现在有最新的精密仪器来以测评这一事件，因为位置紧靠大陆，我们将能够获得其造成变化的高密度立体空间样品。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。