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The results indicate: 1 closed- loop gain and open-loop gain to meet basic relationship; 2 the stability of feedback is enhanced and output resistance increased. Furthermore, the result of open-loop and closed-loop gain of theoretical calculation is consistent with simulation which is applied by EWB software, which confirmed elementary conclusions and relationships in negative-feedback amplifier quantitatively.

结果表明：闭环增益与开环增益满足基本关系式；引入负反馈后稳定性得以提高，输出电阻增大；同时使用EWB对开环与闭环增益也进行了仿真分析，结果与理论计算一致，从而定量地验证了负反馈放大电路中的结论与关系。

Regarding the pollution which is caused by open, non-organized dust dischargement resource such as open-air coalyard , getting the dusting and migrating rule of the dust is the most important question which needs to solve in order to control and govern it effectively.

而对于露天堆煤场这类开放性、无组织排放源所引起的粉尘污染问题，要对其进行有效控制和治理，掌握粉尘的析出机理及其在大气环境中的运移扩散规律是需要解决的首要问题。

Therefore, the torque required to open the gate valve required torque than the closure of large, in addition, for a pair of contact between the sealing surface, the Non Rising Stem Resilient Seated Gate Valves coefficient of static friction between them than the dynamic friction coefficient, to make them from the static state generate the relative movement is required to exert greater force to overcome the static friction; due to temperature changes, so that the sealing surface pressure between the larger, need to overcome the static friction force also will be bigger, so that when you open the valve on the stem nut on the sometimes increase the torque exerted a lot.

所以，开启闸阀所需的力矩比关闭闸阀所需的力矩大，此外，对于一对互相接触的密封面来说，它们之间的静摩擦系数也比动摩擦系数大，要使它们从静止状态产生相对运动，需施加较大的力以克服静摩擦力；由于温度变化，使密封面间的压力变大，需要克服的静摩擦力也随之变大，从而使开启闸阀时，对阀杆螺母上施加的力矩有时会增大很多。" Moment analysis of valve operation "是由中国闸阀网提供的国际阀门新闻，译文仅供参考。另外，中国闸阀网还提供相关产品搜索：闸阀型号、闸阀价格、闸阀技术、闸阀新闻、闸阀生产商等。

Your eyes close,I die;your eyes open ,I come back to life. Your eyes close and open again and again ,I die again and again.

你的眼睛闭上，我就死了，你的眼睛睁开，我又活过来了，你眼睛眨呀眨，我就死去活来。

The next Day after I came home to my Hutch with him, I began to consider where I should lodge him, and that I might do well for him, and yet be perfectly easy my self; I made a little Tent for him in the vacant Place between my two Fortifications, in the inside of the last, and in the outside of the first; and as there was a Door, or Entrance there into my Cave, I made a formal fram'd Door Case, and a Door to it of Boards, and set it up in the Passage, a little within the Entrance; and causing the Door to open on the inside, I barr'd it up in the Night, taking in my Ladders too; so that Friday could no way come at me in the inside of my innermost Wall, without making so much Noise in getting over, that it must needs waken me; for my first Wall had now a compleat Roof over it of long Poles, covering all my Tent, and leaning up to the side of the Hill, which was again laid cross with smaller Sticks instead of Laths, and then thatch'd over a great Thickness, with the Rice Straw, which was strong like Reeds; and at the Hole or Place which was left to go in or out by the Ladder, I had plac'd a kind of Trap-door, which if it had been attempted on the outside, would not have open'd at all, but would have fallen down, and made a great Noise; and as to Weapons, I took them all to my Side every Night.

应该说，我现在的裁缝手艺已相当不错了。另外，我又给了他一顶兔皮帽子，戴起来挺方便，样子也很时髦。现在，他的这身穿戴也还过得去了。他看到自己和主人几乎穿得一样好，心里十分高兴。说句实话，开始他刚穿上这些衣服时，深感行动不便；不但裤子穿起来感到很别扭，而且，背心的袖筒磨痛了他的肩膀和胳肢窝。后来我把那使他难受的地方略微放宽了一些，再加上对穿衣服也感到慢慢习惯了，他就喜欢上他的衣着了。回到家里第二天，我就考虑怎样安置星期五的问题。我又要让他住得好，又要保证自己绝对安全。为此，我在两道围墙之间的空地上，给他搭了一个小小的帐篷，也就是说，这小帐篷搭在内墙之外，外墙之内。在内墙上本来就有一个入口通进山洞。因此，我在入口处做了个门柜和一扇木板门。门是从里面开的。一到晚上，我就把门从里面闩上，同时把梯子也收了进来。这样，如果星期五想通过内墙来到我身边，就必然会弄出许多声响，也就一定会把我惊醒。

There had been no open complicity between mother and daughter, no open understanding.

母女之间并没有公开同谋，也没有坦率的协议。

The grownups always tried to confute me with some sort of scientific explanation, saying that baby's eyes could not be open anyways, even they were open, they could not possibly see things clearly enough to remember them.

大人门总是想用一种科学的解释来反驳我，他们说刚出生的小孩眼睛不可能是睁开的，就算是，也不可能把周围的东西看清楚到能够记住。

According to the practical project "Research on the mechanical optimization of the slope configuration for the Jinduicheng open pit " which the author has engaged in, study on the oval-shaped deep-concave open pit slope with the convex curve has been presented in this thesis.

论文作者通过参与导师《金堆城凹陷露天矿边坡形状力学优化研究》项目所做的研究工作，以金堆城露天矿为研究对象，重点研究了水平面为椭圆形竖直面为凸形的深凹露天边坡。

Though Coronet was a bustling city, it was filled with parks, plazas and open-air trading stalls, indicative of the Corellian love of wide open spaces.

虽然宝冠城是一个熙熙攘攘的城市，但那里到处都是公园、广场和露天商店，这些说明了科瑞利亚人喜欢开放的空间。

Your eyes cose, I die; your eyes open, I come back alive. Your eyes close and open again and again, I die and come back time after time.

你的眼睛闭上，我的魂就飞；你的眼睛睁开，我的魂又回；你眼睛眨呀眨，我就死去活来千百回。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。