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Fever,malaise, and myalgia often occur one to two daysprior to theappearance of lesions.

在出现这些局部的症状前1-2天常伴有发热，全身不适及肌肉酸痛的全身症状。

Penicillin is able to not only kill the bacteria without damaging human cells due to penicillin Penicillium contained n the synthesis of cell wall of bacteria can occur obstacles, resulting in the death of the bacteria dissolved, and human and animal cells, there is no cell wall.

青霉素之所以能既杀死病菌，又不损害人体细胞，原因在于青霉素所含的青霉烷能使病菌细胞壁的合成发生障碍，导致病菌溶解死亡，而人和动物的细胞则没有细胞壁。

The bulky ortho-brominated aryl groups are implanted to create nonplanarity around amino center. Thus, the effective conjugation length to the protonation site is shortened and the energy gap between neutral and protonated forms is narrowed. The protonation can only occur at the nitrogen atom of the benzothiazole and the temperature variation disturbs the equilibrium between the neutral and monocation and the reverible thermochromic effect can thus be achieved.

在邻位的位置引入立体阻碍大的溴原子，进而控制质子化过程的酸碱平衡只发生在 benzothiazole 上的氮原子上，企图达到只有中性分子，与单阳离子两种稳定的形式存在，经由外界的刺激下，例如温度或酸的量的改变，促使逆反应的发生，而达到热致变色的效果。

Pain due to dynamic coronary narrowing from arterial spasm although ischemic tends to occur at rest or nocturnally.

动脉痉挛引起动力性冠状动脉狭窄并产生的疼痛，尽管是缺血性的，也往往在休息或夜间发生。

Pain due to dynamic coronary narrowing from arterial asm, although ischemic, tends to occur at rest or nocturnally.

动脉痉挛引起动力性冠状动脉狭窄并产生的疼痛，虽然是缺血性的，也往往在休息或夜间发生。

Pain due to dynamic coronary narrowing from arterial spasm, although ischemic, tends to occur at rest or nocturnally. Myocardial ischemic pain usually lasts only minutes.

动脉痉挛引起动力性冠状动脉狭窄并产生的疼痛，虽然是缺血性的，也往往在休息或夜间发生。

These two methods were used together in this study to pinpoint where on a polypeptide chain the nonpolar segments occur and where initial folding takes place and then propagates to the final folded form.

这两种方法合起来运用到研究中，可以查明肽链上非极性片断的位置、最初折叠发生的地方，和最终折叠形成的形式。

Downhole accidents frequently occurred due to the factors such as complicated formations, low automation degree of drilling equipments and nonproficiency of operation, and so on. High drilling cost or even the abandonment for a well will probably occur owing to those downhole accidents.

在钻井过程中，受地层多变性、钻井设备、仪器仪表自动化程度以及钻井操作技术熟练程度的制约和影响，井下往往会发生各种各样的复杂钻井事故，有的复杂事故会造成钻井成本急剧升高，甚至导致一口井报废。

By adjusting the length of the manipulators according to the obliquitous sensor,im to keep robot body s horizontal pose can be implemented~ But the skid will occur between running wheels he overhead ground wires.

这种方法虽然解决了车体倾斜现象的发生，但出现机器人两行走轮在架空地线上打滑的现象，从而造成对架空地线不必要的损伤，同时加速行走轮的磨损。

For that to occur, however, you need to know how to control your attention.

为何会出现，但你要知道如何控制你的注意力。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。