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压过

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But with boulders thundering down the steep mountainsides surrounding the school and rocks flying everywhere, it was not long before the fallen boy was struck again and killed.

但是大石头不断的从学校周围的山上滚下,飞石四撞,在这个男孩被压没过多久就死去了。

Force your players to play higher up the field and force the opposition into their own half.

但为了阻止你自己以后后退过深,所以必须命令你的球员向上压上迫使你的敌人龟缩在他们的半场内。

No people has done a systematic study of economic evaluation of the fractured well in internal.

压裂井的经济评价,目前在国内还没有人作过系统的研究。

Base on the Fluent software,the time-average N-S equation,RNG k-ε turbulence modeling,P1 radiant modeling and particle track modeling,example for boost motor PQM-1 of Titan 4,by using flow-solid coupling boundary condition,the 2D axial symmetry gaseity fluid modeling and two phase fluid modeling were founded and the influence of coagulate particle to the flame-spread process in large aspect ratio SRM ignition transient were analyzed.

0引言固体火箭发动机点火过程是点火燃气流动与火焰传播相互耦合的过程,即包括点火燃气流动、药柱加热、局部点燃、火焰传播、室压建立等复杂的非定常过程,其中火焰传播在点火瞬态过程中占有重要地位,是发动机点火延迟、压强峰值过高、断续燃烧和熄火的主要因素,因此国内

Use arm lubricating gun to inject grease to the lubricating position of beam pumper with large work intension and long well off, which effects oil production efficiency seriously, is easy to well recline for sandy well and causes waste .

中文摘要:使用压杆式黄油枪把润滑脂注入到游梁式抽油机润滑部位,工人劳动强度大,停井时间过长,严重影响了采油时率,对于易出砂井,还容易躺井,造成了作业费用的浪费。

Also protect circuits against loss of hall signal, low battery voltage, over current are included.

此外,还包括了霍尔传感器断线检测、电池欠压保护、过流保护等保护功能。

Is one of the earliest professional development and production of electric vehicle speed controller of the private scientific and technological enterprises, the company has a strong professional design and production capacity, products have been a number of brands for the domestic electric vehicles matching efficiency and performance are better than ordinary products, annual production capacity of 200,000 sets, the company has brush controller, using pwm control, high efficiency, with over-current, current limiting, undervoltage,"speed" a wide range of protection features Special high-power brush has controller using the latest electric vehicles for the use of high-life relays and intelligent anti-Speed circuit.

溧阳爱斯特自控器材科技开发有限公司是国内最早专业开发生产电动车调速控制器的民营科技企业,公司具有较强的专业设计及生产能力,产品已为国内诸多品牌电动车配套,其效率及性能均优于一般产品,年生产能力二十万套,本公司生产的有刷控制器,采用pwm 控制,效率高,具有过流、限流、欠压、"飞车"多种保护功能,特别大功率有刷控制器采用最新专供电动车使用高寿命的继电器及智能防飞车电路。

Effects of P modification on primary Si in hypereutectic Al-Si die casting alloy with different cooling rates were investigated.

以过共晶压铸铝合金为对象,研究了P变质对不同冷却速度下初晶Si组织的影响。发现P变质处理前后随冷却速度的增加,初晶Si尺寸减小的变化趋势十分相似,并且都存在一个明显的突变区域。

In a year for two times poineering failure of ground of infuriation of break out of elated, interest, interest, after doing poineering work to fail again, he began to think over, feel handicraft is one of popular products that had better sell on the net from beginning to end, there still are many moneys in the hand anyway, he continues to regard business as handicraft, but this moment already unlike at the outset, a year of two at hand after be defeated are very close, not allow he buys ad of search contest price on the net, advertisement puts in in relevant website, then, he begins to write soft article painfully, had not written a thing a lot of years, can toughen one's scalp-brace oneself is written, won't write write running water account book, had written past rich each are guest, big go sending in forum, those who lean is manual work, stay up late everyday before dawn 45 bits, sent the flexible language of half month, received the first only business eventually, 100 much.

在一年两度兴高采烈、兴致勃发、兴趣激昂地创业失败,创业再失败以后,他开始了反思,觉得工艺品始终在网上是最好销的热门产品之一,反正手里还压着不少货,他就继续将工艺品作为业务,但这个时候已经不象当初,一年两败后手头很紧,不容他在网上去买搜索竞价广告,在相关网站投放广告,于是,他开始费力地写软文,好多年没有写过东西,只能硬着头皮写,不会写就写流水帐,写好了往博客、各大论坛里去发,靠的都是体力活,每天熬夜到凌晨四五点,发了半个月的软文,终于接到了第一单生意,100多。

It is found that during the vacuum chamber extinguishing courses,a great deal of X-radiation are released from the vacuum interrupter.

一般认为,在进行真空灭弧室的出厂耐压试验时不会产生危及人体健康的X射线,但这忽略了两个非常重要的因素,即过小的开距和较高的外施电压。

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Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。

In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).

在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。