The precision measurement of bevel cylindrical gear based on three dimension al shape;2. In this paper, based on the statistical data of the practical water irruptions, the three dimension al dispersion feature of water irruption is researched.

本文根據(jù)底板突水實(shí)例的統(tǒng)計(jì)資料欧美精品午夜在线视频，研究了突水災(zāi)害的空間分布規(guī)律；通過綜合分析煤層底板內(nèi)應(yīng)力測(cè)試三維有限元電算及相似材料模擬結(jié)果探討了底板突水災(zāi)害地下三維空間分布規(guī)律形成的原因97.riav，為深入研究底板突水的防治提供了參

A given discourse, even if it can be identified as such, develops as much through sudden irruptions, transformations, contradictions, and differences as it does through constancy or regularity.

某一話語人人操人人爱人人草，即使它可以被確認(rèn)為，開發(fā)了通過突然irruptions 在线鲁鲁视频免费观看，變革欧美在线精品视频第九页，矛盾和分歧，因?yàn)樗煌ㄟ^恒趁夥言谙吣愣茫或規(guī)律亚洲一级高清在线大黄毛片。

We no longer live in the days when terrible swarms within made irruptions, when one heard beneath his feet the obscure course of a dull rumble, when indescribable elevations from mole-like tunnels appeared on the surface of civilization, where the soil cracked open, where the roofs of caverns yawned, and where one suddenly beheld monstrous heads emerging from the earth.

我們這時(shí)代不會(huì)再發(fā)生那種引起劇變的內(nèi)部紛爭(zhēng)聚訟，不會(huì)再聽到自己腳下那種隱隱可辨的暗流日本在线a，不會(huì)再遇到那種來自鼴鼠的坑道能免费观看的AV网站、出現(xiàn)在文明表層的難于形容的騷動(dòng)，不會(huì)再有地裂免费小草av，巖洞下坼一级一级一级一级片，也不會(huì)再看見妖魔鬼怪的頭從地底下突然鉆出來。