The result makes clear: 1 index of pressure of Chinese farmland zoology is older, be in ascendant trend, its are main the reason is our country farmland the area decreases in great quantities continuously and population increases;2 farmland pressure quickly to save time difference bigger, the farmland pressure of southeast and southwest is apparent prep above is mid with heighten of grade of index of pressure of zoology of farmland of municipality directly under the Central Government of upper zone;3 and southeast ministry area, upper, northwest and mid major area exponential grade is invariant, only mid with the decrescent of grade of index of a few district, but not apparent.

結(jié)果表明：1近11年的中國耕地生態(tài)壓力指數(shù)比較大国产在线偷窥视频网址，并處于上升趨向，其主要原因是我國耕地面積持續(xù)大量的減少和人口快速的增加人人人人人干的视频；2耕地壓力省際差異比較大在线观看中文字慕免费，東南和西南地區(qū)的耕地壓力明顯高于中部和北部地區(qū)；3直轄市和東南部地區(qū)耕地生態(tài)壓力指數(shù)等級增高一线级品罕见馒头自慰喷水，北部日本aa、西北和中部的大部分地區(qū)指數(shù)等級無變化，僅中部和東北部的少數(shù)地區(qū)指數(shù)等級變小国产狠C视频在线观看，但并不明顯日韩精品更新资源在线观看视频。

After the interval was adjusted twice, the stress of the dangerous dedendum surface decreases 29% compared with the traditional meshing scheme of sabot, and the stress of every dedendum surface tends to be close, so this technology makes full use of the intensity of the composite.

通過2次間隙調(diào)整后，彈托危險齒根面的等效應(yīng)力值相比傳統(tǒng)嚙合方式的應(yīng)力值減少了29%以上国产在线视频国产永久2021，各齒根面的應(yīng)力趨于接近中国免费的黄色网站，使復(fù)合材料的強度得以充分發(fā)揮。

The results show that with the increasing of oxidation time, the roughness of the coating surface increases gradually, the growth rates of the MAO coatings decrease, the content of calcium increases in proportion to the time, the content of phosphor increases degressively and the relative content of anatase TiO2 first increases, then decreases.

研究結(jié)果表明：隨著氧化時間的增加亚州中文字幕操喷，膜層逐漸變得凹凸不平永久黄网站色视频免费APP下载；膜厚的增速變緩；Ca質(zhì)量分數(shù)呈線性增長人人澡人人摸人人干；P質(zhì)量分數(shù)呈遞減式增長免费观看国产黄页网站；銳鈦礦TiO2的相對含量先增長，然后逐漸減少国产人妖。

As for the dehumidify ing conditions, the condensing rate for the humid air increases with Reynolds number but decreases as the inlet temperature of cold water increases.

同時濕盤管的熱傳量及除濕率亦也隨著冰水入口溫度的降低而增加无码自拍日韩视频，顯熱比隨著冰水溫度的降低而減小。

Adhesive chemical gel State so that the viscosity and liquidity decreases and the loss of business card printing and membership card making performance, while still in tuhung on deink.

油不朱膠化不敗凍膠狀況中文在线播放，使粘度和流動性貶矮日韩偷窥自拍系列在线观看视频，獲得制卡和會員卡制作本能機能，而遨游在不朱斗上引起脫不朱白丝袜91在视频。

For instance, the cell density of the cortex decreases with phylogenetic ascent, whereas the length and quality of dendrites increases.

例如在线观看免费涩涩视频，皮質(zhì)的細胞密度隨著種系發(fā)展的提升而下降激情图区亚洲，而神經(jīng)元樹突的長度與品質(zhì)則隨之上升。

The maximum field on the right of ring junction decreases with the increase of ring spacing and lateral diffusible depth.

在場限環(huán)結(jié)構(gòu)中欧美一二三区视频，當主結(jié)和環(huán)結(jié)在表面處的最大電場強度均等于臨界電場強度時玖玖爱视频在线，擊穿電壓達到最大值，此時所對應(yīng)的環(huán)間距為最佳環(huán)間距日韩在线试看福利网站免费。

The maximum field is situated in main junction, maximum field increasers with the increase of ring spacing and decreases with the increase of lateral diffusible depth.

環(huán)右側(cè)最大電場也出現(xiàn)在結(jié)處pirn免费毛片在线，隨著環(huán)間距和橫向擴散深度的增加，最大電場均減小无码专区永久免费AV网站。

However, the turnover frequency for dimethyl carbonate decreases with the increase in the Cu content of catalyst.

催化劑的反應(yīng)活性與催化劑的焙燒溫度密切相關(guān)特级毛片A片全部免费播直播，最佳的催化劑焙燒溫度在200～300℃之間。

The results indicate that there are strong dipole or ionic pairs interactions between carboxylic acid or anhydride and dimethylamino groups in reactive blends, so reactive compatibilizers are formed at the interphase, which can reduce the interfacial tension and improve interfacial adhesion between the component polymers, meanwhile the morphologies of the reactive blends become more fine and uniform, the dispersed domain size decreases remarkable.

研究結(jié)果表明：在PS/PE-g-MAH/St-Co-DMA和PS/EPDM-g-DMA/St-Co-MAH反應(yīng)性共混體系中欧美牲交a欧美牲交久久精品，反應(yīng)性聚合物所含的酸酐基團與叔胺基團存在離子對間的相互作用1024精品久久久久久久久；在PS/Surlyn/St-Co-DMA和PS/EPDM/Surlyn/St-Co-DMA反應(yīng)性共混體系中，反應(yīng)性聚合物所含的羧酸基團與叔胺基團間存在偶極相互作用欧洲欧美黑白配黄色高清免费一级视频。