率

ResultsCyromazine had a great toxicity to firs t-instar larvae of housefly with LC 50 value of 43.896 mg/L, and showed less toxic actio n to third-instar larvae and adults of housefly, but reduced the pupate, ecl osion, female oviposition and egg hatch.

结果 灭蝇胺对家蝇 1日龄幼虫的 48h的LC5 0 值为 43 。896mg/L ，对 3日龄幼虫和成蝇的毒杀效果较差，但可引起幼虫化蛹率、羽化率以及雌成蝇产卵量和卵孵化率明显下降；阿维菌素对家蝇 1日龄、3日龄幼虫和成蝇表现出较强的急性毒杀作用，其 48hLC5 0 值分别为 0 。162 1mg/L、1.5546mg/L和 0 。2 10 3mg/L ，而对家蝇生长发育无不良影响。

Because the model solution is one kind of NP difficult problem, we propose a new multinomial solution algorithm, and finally take online handwriting signature verification as example to confirm the mathematical model. For 150 test signatures that we choose randomly, the successful matching rate is 91.33%, the wrong reacceptance is 6% and the wrong reject rate is 2.67%.

由于模型的求解是NP困难问题，针对这种情况，提出了一种新的多项式的求解算法，以在线手写签名验证为例验证数学模型，然后对随机的150个测试签名进行检验，结果成功匹配率为91.33%，误纳率为6%，误拒率为2.67%。

These uncontaminated explants showed that morphogenetic potential were 70%-75% and each responding explant had 1.2-1.4 shoots formation on MS medium supplemented with 2 mg/L NAA and 16 mg/L BA. Moreover, adding antibiotics (100 mg/L Rifampicin and 100 mg/L Gentamycin) to solidify MS contained 3% galactose were tested, results showed the lowest contamination rates were 20% and 1.0-1.2 shoots were regenerated per responding explant. The antibiotic treatments with 100 mg/L Rifampicin and 100 mg/L Gentamycin could reduce internal contaminants, while the addition of antibiotics into medium in vitro culture led to phototoxic phenomena of axillary explants, morphogenetic potential lost and the growth of regenerant was also inhibited.

以100 mg/L Rifampicin+100 mg/L Gentamycin或100 mg/L Rifampicin+100 mg/L Gentamycin+150 mg/L Streptomycin组合浓度处理者，具有显著降低污染率的效果分别为60%及50%；克服内生菌污染而建立初代无菌培养之腋芽培植体，则以100 mg/L Rifampicin或以100 mg/L Rifampicin+100 mg/L Gentamycin处理者，芽体再生率最高70%-75%，惟平均每一腋芽培植体芽体增殖数仅1.2-1.4个；另在醣种类及浓度与抗生素试验，显示100 mg/L Rifampicin+100 mg/L Gentamycin之抗生素浓度组合添加至含3g/L半乳糖的培养基，显著降低污染率至20%；但未污染之培植体，形态发生潜能低至40%以内，可反应生长之培植体芽体形成数也仅达1-1.2个之间，再生芽体之生长也显现抑制现象。

In this experiment, COD removement is used as the macro-index to reflect the change of the activity of microbial indirectly and we expect to find the optimum concentration of the growth of microbial in the biological treatment system of sewage.

通过对比试验表明：(1)投加金属盐MnCl_2·4H_2O能够在一定程度上提高污水COD的去除率，在锰离子的投加量为0.5mg／L时，加药反应器COD去除率相对于对照桶COD去除率有4.3个百分点的提高。

Methods 160 reverse flow axial flaps were used to repair the defects of eyelid, nose,chin,lip,neck,vagina,and penis,including retroauricular flap based on superficial temporal artery,auricular composite flap based on supraorbital vessels,neck-submandibular flaps based on contralateral side mental artery,nape-scapulo-dorsal flap based on transverse cervical artery,and medial ...

方法随机选择160例近22年来应用较广的5种动脉跨区供血反流轴型皮瓣，即：颞浅血管为蒂的乳突区皮瓣、眶上血管为蒂的岛状耳廓复合组织瓣、颏下动脉蒂的对侧颏颈皮瓣、颈横动脉供血的项肩背皮瓣、会阴动脉供血的股内侧皮瓣，考查其完全成活率、部分成活率、完全坏死率、动脉缺血发生率、动脉缺血致皮瓣坏死率、静脉淤血发生率、静脉淤血致皮瓣坏死率等指标，并与我院同期内应用的常规顺流轴型皮瓣随机样本120例进行比较。

The result showed that the dosage of 5000 IJs/plant was the best one among the 8 dosages, the average of injured legume (3.l%) with BPS was significant lower than that of 40% isofenphos-methyl solution (9.0%) and than that of tap water (53.2%). The rate of grub decrease (95.7%) and the dry weight of peanut (5941.5 kg/ha) with BPS were significant different (P.05) to that of with 40% isofenphos-methyl solution (82.7%, 303.8 kg). The application of BPS was better with irrigation than with spray. At the dosage of 5000 IJs/plant, the combination of BPS and Rhabditis sp.(4500:500) did not show conflictive, coordinate or synergistic effect to grub control.

结果显示：在8个处理剂量中，以5000 IJs/穴的剂量田间效果最好，花生荚果受害率(3.1 %)显著低于40 %甲基异柳磷对照的(9.0 %)和清水对照的荚果受害率(53.2 %)，蟒螬减退率(95.7%)和平均产量(5941.5 kg/hm^2)也与40%甲基异柳磷对照的(82.7%， 303.8 kg)有显著差异(P.05)；灌施效果显著好于喷施；在5000 IJs/穴的剂量下，混合喷施BPs线虫和小杆线虫(4500：500)，未表现出相克、协同或加性效应。

This paper put forward some basic conclusions after analyzing floating population's resident pattern in Shanghai.(1) When floating population migrate to city, they'll gradually sedimentate ,and finally 10% people will permanently settle down.

通过构造进入城市的流动人口同期群，我们比较流动人口的期初期末滞留率、分居留时间别滞留率、分人口群体的继续滞留率等，以此来说明流动人口在居留模式上所表现出的特点。

The preliminary bioassays indicated that, at 500 g/mL, 1-(o-tolyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4g) and 1-(2,4-dimethyl- phenyl)-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4k) showed inhibitory activities 90% and 80% against Blumeria graminis, respectively; and at 25 g/mL, 4-phenyl-4-(4-chloro-3-ethyl-1- methylpyrazol-5-ylcarbonylsemicarbazide (4c) showed inhibitory activity 70.1% against Botrytis cinerea and 1-2-nitro-phenyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonylsemicarbazide (4d) showed inhibi-tory activitiy 51.3% against Pyricularia oryzae.

初步生物活性实验结果表明，在500 mg/mL浓度下，化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2-甲基苯基)氨基脲(4g)， 1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2，4-二甲基苯基)氨基脲(4k)对小麦白粉病菌的抑制率分别达到90%和80%；在25 mg/mL浓度下，化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-苯基氨基脲(4c)对黄瓜灰霉病菌的抑制率达到70.1%；化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-苯基氨基脲(4c)和1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2-硝基苯基)氨基脲(4d)对稻瘟病菌的抑制率均达到51.3%。

The experimental results indicated that the addition of yellow serofluid had better nitrogen source effects than carbamide with its optimal addition level as 2 %(cell concentration increased by 18 %, bud ratio increased by 16 %, and liquor yield by alcohol fermentation increased by 2.2 %), which could settle the problem of environment pollution induced by direct discharge. The use of yellow serofluid in the production of alcohol from cassava could increase alcohol content in fermenting solution and liquor yield by 14.2 %Vol and by 35.5 % respectively.

结果表明，添加黄浆水作为酒母培养的氮源效果优于尿素；最适添加量为2 %；成熟酒母发酵液中细胞浓度比尿素作营养盐时提高18 %，出芽率提高16 %，酒精发酵出酒率提高2.2 %；可解决直接排放带来的环境污染问题；用于木薯原料酒精发酵，发酵液中酒精度可达14.2 %Vol，原料出酒率为35.5 %。

The results show that the optimal parameters of this technique are as time of 3 h, temperature of 150 ℃, ratio of liquor to solid of 1.21, H2SO4 additions of 25%, 85% material granularity of 0.095 mm. The one-step leaching percent of vanadium can reach 77%, the leaching percent obtain 90% after two-step countercurrent leaching. The vanadium leaching percent have growth and decline relation to occupation ratio of vanadium in in-soluble silicoaluminate mineral.

结果表明：该工艺的最佳工艺参数如下，即时间3 h、温度150 ℃、液固比1.21、硫酸用量25%、85%矿石粒度粒经小于0.095 mm；在此条件下，钒的一段浸出率为77%左右，而矿石经过两段逆流浸出后，钒浸出率可达90%；钒浸出率与矿石中难溶硅铝酸盐相中的钒占有率呈现消长关系。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。