紋孔內口 的英文怎麼說
中文拼音 [wénkǒngnèikǒu]
紋孔內口
英文
inner aperture-
This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and
本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。Wallet with retractable id sleeve, id slot with monofilament window, internal key holder slot, three horizontal and three vertical card slots, extra storage slot, bill compartment with divider, quilted accent with heavy - gauge thread on exterior leather, embroidered icon, and metal bar logo accent
錢包與可撤回的身份證袖子，身份證槽孔與單絲窗口，內部關鍵囤戶槽孔，三個水平和三個垂直的卡片槽，額外存貯槽孔，票據隔間以分切器，縫制了口音與重測量螺紋在外部皮革、被繡的像，和金屬棒商標口音。Analysis results of histogram statistics and section electron microscopic scan technique, are that fracture feature of the cracks of the hbbb is similar and the crack is multi - source strain fatigue one. internal defects of the cast, such as impurities, gas holes, etc, are the main causes for early cracks. the contrast analysis of static strength, model and transient respond on three structures with fem proves that geometrical stress concentration in partial area has influence on early crack, also
利用直方圖等統計方法和電鏡掃描技術對該抱軸箱體裂紋分析的結果是：抱軸箱體的裂紋斷口特徵相近，裂紋性質屬于多源性低周疲勞裂紋，鑄件中的夾雜、氣孔等內部缺陷是導致過早裂損的主要原因；利用有限元法對該抱軸箱體三種結構的靜強度、模態和動態響應對比分析，證實了局部幾何性應力集中對過早裂損也有一定影響。He was unmistakably trying to find something to say, and unable to find anything. boris, on the contrary, was at home immediately and talked easily and playfully of the doll mimi, saying that he had known her as a young girl before her nose was broken, and she had grown older during the five years he remembered her, and how her head was cracked right across the skull
顯然，他想開口說話，但卻找不到話題鮑里斯正好相反，他一下子就想到了應付的辦法，沉著而戲謔地講起洋娃娃咪咪的事，說他認識它的時候，它還是個小姑娘，當時它的鼻孔還沒有碰壞，他記得在這五年內它變老了，頭頂也現出裂紋了。When the fire breaks out, fire source may spread to the storage tank through the inlet, when the flame passes the small pore of the flame - resistant core layer in the respiration valve, due to the wall effect, the corrugating plate absorbs a great deal of heat, so as to increase heat loss at once, so that the flame is extinguished
當發生火警時，火源有可能通過進入口向儲罐內漫延，當火焰通過呼吸閥內阻火芯層的狹小孔隙時，由於器壁效應，波紋板吸收大量熱源，使熱損失突然增大，從而使火焰熄滅。This model of valve overcomes such defects with the motor valve, piston - type electromagnetic valve as the post - wear defective closure due to the mechanical movement, the soft membrane full of elasticity, the balance hole can not close water because the foreign matters and mud sand accumulate and block it up etc., the highly effective use of the unique circuit greatly raises the reliability of the switch, extensively used for ic card watermeter, infrared induced sanitary utensils, etc
Fck - 118 ：進水口出水口為1寸25內螺紋該型閥克服了如電機閥活塞式電磁閥機械運動磨損后的關閉不良。軟性膜片富有彈性，平衡小孔不會因雜質與泥沙的淤積堵塞使其關不住水，獨特線圈磁路的高效利用大大提高了閥開關可靠性，廣泛用於ic卡水表紅外線感應潔具等自動控水系統。When the fire breaks out, fire source may spread to the storage tank through the inlet, when the flame passes the small pore of the flame - resistant core layer in the flame arrester, due to the wall effect, the corrugating plate absorbs a great deal of heat, so as to increase heat loss at once, so that the flame is extinguished
當發生火警時，火源有可能通過入口向儲罐內漫延，當火焰通過阻火閥內阻火芯層的狹小孔隙時，由於器壁效應，波紋板吸收大量熱源，使熱損失突然增大，從而使火焰熄滅。分享友人