A selenious acid type solution of better performance was obtained by the test of polarization curve, the test of corrosion resistance and the test of duration life.

研究改進(jìn)了現(xiàn)行的鋼鐵件常溫黑化工藝久久99精品国产免费，通過極化曲線測試国产嫖妓一区精品视频、耐蝕性測試、壽命測試得到了性能良好的常溫亞硒酸體系黑化液欧洲人与动牲交Α欧美精品。

By using microcalorimetric method, the growth thermogenetic curves of Rhizopus nigricans inhibited by four kinds of heavy metal ions are determined, parameters such as growth rate constants k, inhibitory ratio I, and half inhibitory concentration IC 50 etc.

用微量熱法測定了Cu~(2+)国产精品-色哟哟，Cd~(2+)，Hg~(2+)日韩性色生活免费观看，Pb~(2+)等四種重金屬離子對黑根霉菌生長抑制的產(chǎn)熱曲線欧美一级媱片^片久久精品，得到了黑根霉菌在不同條件下的生長速率常數(shù)k，抑制率I99er在线视频，半抑制濃度IC_(50)等參數(shù)色哟哟亚洲。

In recent years, some pesticides are non-functional on Venturia nashicola because of the emergence of drug-resistant bacteria and chemical residues in the environmental pollution problems.

近年來由于梨黑星病菌抗藥性的產(chǎn)生及藥劑殘留量對環(huán)境污染問題等使一些藥物對梨黑星病菌的防治效果明顯下降。

The results showed: after local leafhoppers were inoculated with RDV- SX isolate, RDV- LQ isolate, the vector viruliferous rates were similar as 84 % and 75% respectively,but the rice incidence rates were dissimilar as 28.1% and 2.8 % respectively.

研究表明：用本地黑尾葉蟬分別接種RDV本地分離物和云南分離物欧美一级A片直播，斑點(diǎn)雜交顯示介體帶毒率相似人人看黄视频，分別為84%、75%啪啪啪免费无码视频，但生物學(xué)接種結(jié)果差異相當(dāng)大综合久久2019，分別為28.1%，3.8%wwjizz国产，另外斑點(diǎn)雜交顯示云南病區(qū)的黑尾葉蟬帶毒率為88%欧美激情久久，說明介體葉蟬的傳毒能力具有地域性，介體葉蟬帶毒率與傳毒能力也存在一定差異国产熟睡乱子乱A片。

Readers can glean new insights into the obsidian of the Black Rock sites, jasper at Hell's Backbone, petrified wood at Bullfrog Turnoff, and fossils of sea lilies along the Wasatch Range.

讀者可以搜集到的新見解黑曜石黑巖遺址国产AV无码AV一区，碧玉在地獄的骨干，在牛蛙矽化木關(guān)機(jī)最新国产小视频，和海百合化石沿著Wasatch范圍精品99r。

Each of these buckles is available on smooth brown or black leather or on crocodile-style brown or black leather.

每個這些扣是可利用的在光滑的棕色或黑皮革或在鱷魚樣式棕色或黑皮革。

Right now we initially identity it Aspergillus niger. By testing discoloring ability of the strain, we have proved it own such ability.

對這株黑曲霉的脫色能力進(jìn)行了初步檢測a∨在线视频，證明了該株黑曲霉的脫色能力97人人草人人。

Although tanning industries claim that UVA radiation is safe, medical research disproves this theory.

盡管美黑行業(yè)號稱UVA射線是安全的，但醫(yī)學(xué)研究報告證實(shí)了人工美黑并不是安全的日韩精品导航大全视频在线播放免费。

Graying of hair is a result of a decreased number of melanocytes, which produce fewer melanosomes.

毛發(fā)變灰白是黑素細(xì)胞減少的結(jié)果肏屄在线免费视频，它們產(chǎn)生更少的黑素顆粒。

This may be due to the design of the Dark Wizards' hexes, which we may assume are intended to be irreversible.

這或許應(yīng)歸于黑巫師黑魔法的效應(yīng)嗯一毛片黄片操逼片，這種魔法被規(guī)定為無法逆轉(zhuǎn)的一av天堂。