And the strengthening mechanism can be described as follows: WC cemented carbides have interlaced short-clubbed grain, and in the bend strength test, the microcrack generates at WC/WC grain boundary, and may be blocked by interlaced fine-clubbed grains during extending, which induce the intergranular pulling-out. Due to the pulling-out mechanism, fracture-extend energy is greatly expended, thus bend strength is increased. The wear mechanism is groove wear and spalling of WC grains.

熱機械合金化合成的WC-Co硬質(zhì)合金比傳統(tǒng)方法制備的同類WC合金具有更高的強度，其機理是：熱機械合金化合成的WC合金具有交替排列的短棒狀組織操屄视，在三點彎曲試驗中，微裂紋萌生于WC/WC晶界位置，受到交錯排列的短棒狀晶粒的阻礙美国一极黄片，裂紋擴展以短棒狀晶粒的拔出方式進行，極大地消耗了裂紋擴展的能量美女白丝黄视频在线免费观看a，從而提高了彎曲強度国产欧美AAA√；合成試樣的摩擦磨損過程以犁溝磨損和WC顆粒的剝落為主要特征。

The author first put forward the new method of composite yarns which consist of wool staple fibers and PET filament, broke through the conventional spinning method which spun by wool staple and PET staple fibers.

本文首次提出毛短纖維與滌綸長絲紡制復(fù)合紗線的方法a在线视频，突破了傳統(tǒng)的毛短纖維與滌綸短纖維混紡紡紗的思路…性欧美视频A片AA片…。

Wool/pet sirofil and plyfil composite yarns were consisted of pet filament and strand of wool/pet staple fibers or single yarns in the modified spinning machine or twister.

摘要本文首次提出毛短纖維與滌綸長絲紡制復(fù)合紗線的方法，突破了傳統(tǒng)的毛短纖維與滌綸短纖維混紡紡紗的思路欧美性高潮。

Wool/PET Sirofil and Plyfil composite yarns were consisted of PET filament and strand of Wool/PET staple fibers or single yarns in the modified spinning machine or twister.

本文首次提出毛短纖維與滌綸長絲紡制復(fù)合紗線的方法国产免费黄片精品视频2，突破了傳統(tǒng)的毛短纖維與滌綸短纖維混紡紡紗的思路。

The hydrodynamic performance and the calculation of induced velocity along flow on the constant point after foil shows that if the effects of tip vortex and decay of vortex panel strength be considered, the accuracy of calculation can be increased. Velocity peak value in propeller wake current and distribution of induced velocity after three-dimensional short foil else can be calculated accurately.

通過對三維短翼的水動力性能和翼后給定點沿流向的誘導(dǎo)速度計算表明：采用考慮翼梢渦影響和渦的衰減影響的計算模型，可以提高三維短翼的水動力性能計算精度www色色.com；可以準(zhǔn)確地計算出螺旋槳尾流場的速度峰值www、色五月；可以較好地計算出三維短翼翼后的誘導(dǎo)速度分布。

Pyramid, or umbrella-shaped crown, branches with long sticks and the Spur of the points, 2-pin a bunch of needles, was born in a very short spur to the top.

樹冠塔形或傘形国产真人一级做a片，枝有長枝和短枝之分国产饥渴一区在线，針葉2針一束，生于極短的短枝頂端色色综合五月天。

Fish : loose term to describe a wider than normal short board that has a fairly wide swallow tail, all fish should have a wider tail and width than compared to standard short board, some equipment used for surfing boards have a fairly rounded off nose while others resemble a standard short board with just a little extra width.

魚：寬松的詞來描述更廣泛的比正常的短板亚洲欧美天堂综合久久，有一個相當(dāng)廣泛燕子尾巴，所有的魚應(yīng)該有一個更廣泛的尾巴和寬度比標(biāo)準(zhǔn)相比插插插视频，短板亚洲va在线va欧美va，有些設(shè)備用於沖浪議會已相當(dāng)四舍五入鼻子，而其他像一個標(biāo)準(zhǔn)的短板在线视频A片，只需一點額外的寬度亚洲18一区视频。

Short-day induction can replace ver-nalization of winter wheat, It's a marker of the completions of vernalization or short-day induction that the levels of ZEN ...

短日誘導(dǎo)可以代替低溫春化，低溫春化和短日誘導(dǎo)期間內(nèi)源ZEN 峰值的出現(xiàn)標(biāo)志著低溫春化或短日誘導(dǎo)的結(jié)束色色色丝袜。

Barrel effect is also known as the principle of a bucket or short plate theory, its core content: the composition of a wooden cask, if the length of missing, then the bucket of-sheng of water that is not determined by the longest piece of wood, but it depends on the shortest piece of wood.

木桶效應(yīng)又稱水桶原理或短板理論国产高清线在线观看不卡视频网站，水桶短板管理理論，所謂&水桶理論&也即&水桶定律&日韩午夜精品福利久久，其核心內(nèi)容為：組成木桶的木板如果長短不齊亚洲一二三精品，那么木桶的盛水量不是取決于最長的那一塊木板，而是取決于最短的那一塊木板性欧美69式XXXXX。

Penetrating view about scholar , the article inherited the view of many scholars, and increased some of my own opinions, such as point out short information of cell phone concrete handle course " suggestion leader " function strengthen greatly , from " the media is the message " and " media "--The people one extension "watch short information of cell phone the the developments one rationality,"last " weaken reality of function "; In addition, the article has offered the objective standards of how to judge the short information of cell phone in order to be judged of the short information of cell phone through understanding communication of the short information of cell phone, thus know and have certain reference meanings to some mistakes which clarify people.

文章繼承了有關(guān)學(xué)者青青青青在线网站视频、專家的精辟觀點，并增加了自己的一些見解AV永久无码天堂网毛片，如指出了手機短信具體操縱過程中&意見領(lǐng)袖&作用大大加強2021国产免费牲交视频免费、從&媒介即訊息&和&媒介——人的延伸&看手機短信發(fā)展的合理性、&把關(guān)人&作用弱化等現(xiàn)實情況黄色视频A级毛片；另外爱情岛论坛高清无码，文章通過對手機短信媒體特點的分析，對澄清人們的一些錯誤認(rèn)識也有一定的借鑒意義在线观看国产综合日韩视频。