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The water-and oil-repellent multi-functional finishing agent DM-3640C showed,when used on cotton poplin,good water-and oil-repellent results could be obtained at low dosage(30 g/L DM-3640C and 4 g/L coupling agent DM-3911),water-repellency continuousness was good,the electrolyte influence on water-and oil-repellency was not obvious and wide pH and temperature r.

介绍了有机氟树脂的结构与性能特征，分析了其对织物防水防油的机理，拒水拒油多功能整理剂DM-3640C用于棉府绸整理时，在较低用量下(DM-3640C 30 g/L，架桥剂DM-3911 4 g/L)即可获得优良的拒水拒油效果。

The optimal convergence rates in H-1 and L-2 norms are proved, and the convergence order in L-2 norm is one order higher than that in H-1 norm.

并分别给出了解的H-1模和L-2模的最优收敛阶估计， L-2模收敛阶比H-1模收敛阶高一阶。

Furthermore, the structures of the complexes are strange. The tripodal ligand H〓L〓 form a 2: 2 ring-like binuclear complexes [Eu〓·L〓·6DMF] ·CH〓OH·DMF with Eu〓 in DMF. Two DMF molecules are accommodated in the ring and coordinate with Eu〓.

此外配合物的结构还比较特殊，三足配体H〓L〓与铕的配合物在配位能力较强的溶剂DMF中形成环状的2：2型双核配合物[Eu〓。L〓·6DMF]·CH〓OH·DMF，环状空腔刚好能够把两个配位的DMF溶剂分子包在里面。

Result The corm and scale were easy to induce the callus on the medium of MS+1. 0 mg/L 6-BA+1.0 mg/L NAA, with the induction of 92% and 90% resp. and the induced callus was easy to differentiate.

结果］球茎和鳞片在MS+6-BA1.0 mg/L+NAA1.0 mg/L培养基上容易诱导愈伤组织，诱导效率分别为92%和90%，且愈伤组织容易分化。

Corn flour as a main raw material for producing L-lactic acid, not only be able to improve corn's values in use, but also be able to reduce the production cost of L-lactic acid.

以玉米粉为细菌L-乳酸发酵的主要原料，不仅可以提高玉米的利用价值，而且可以降低L-乳酸的生产成本。

We take biodegradation experiments toward three colonies with different density phenolic waster water, and test their rate of phenolic degrading and speed of bacteria growth in different time period. The results show that the rates of pheolic degrading are more than 95% in 500mg/L phenol and 250mg/L cresol culture solution.

对这三株菌种进行不同浓度的含酚废水降解试验，测定其不同时间段的酚降解率和菌株生长速度，结果表明BP-1，BP-2，BP-3菌在500mg／L的苯酚，250mg／L的甲酚溶液中的降酚率均达到了95％以上。

And the relationship between sex of cucmber and isozyme were analysed. The results indicated that, in terms of numbers of band and activities of peroxidase and superoxide dismutase were significantly induced after treated with silver nitrate and ethephon at 300mg/L and 200 mg/L in cucumber leaves, respectively.

研究表明，300mg·L〓硝酸银和200mg·L〓乙烯利处理黄瓜茎尖后，叶片中过氧化物酶和超氧化物歧化酶两种同工酶的酶谱带数和酶活性均明显受到诱导，而过氧化氢酶几乎不受影响。

It was rev ealed that:cuprite,malachite and tenorite are the three main kinds of copper-bea ring minerals which would be supersaturated when Cu concentration in the solutio n is high enough(higher than 0.0016 mol/L,0.0079 mol/L separately) under the stu dy conditions.Copper exists in the solution mainly as the species of CuCO3 ,Cu2+ and CuOH+.The corresponding content of CuCO3 would be decrea sed following the deposition of the copper-bearing minerals,nevertheless,Cu2 + and CuOH+ would be increased.

模拟结果表明，在土壤中常见的E h和pH及研究区的年平均温度条件下，溶液中铜离子的含量达到一定的浓度时，可以生成赤铜矿(当Cu≈00016 mol/L)、孔雀石及黑铜矿(当Cu≈0 0079mol/L)等次生矿物，溶液中Cu的存在形式也发生了变化，即CuCO3所占的比例不断减小，而Cu2+和CuO H+的含量则相继增高，且Cu2+的增幅大于CuOH+。

This paper studies the curvilinear integral ∮ L[xn-1yn-1]/[x2n+k2y2n]where L is a sectioned smooth and no multiple points closed curve, n is some natural number, k is some positive number.

本文研究曲线积分x~(n-1y~(n-1)/x~(2n+k~2y~(2n)，其中L是公段光滑无重点的闭曲线，n为某一自然数，k为某一正数。首先利用极坐标变换将曲线积分化简，然后对n、L不同情况给出相应结果

For instance, under the dosage of 2g/L and initial concentration of 100 mg/L, the decolor rate of methyl orange with natural bentonite and XB are 17.75% and 91.84%, respectively.

吸附剂用量为2g/L时，对100mg/L的甲基橙溶液，原土和XB的脱色率分别为17.75%和91.84%。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。