后投

In this article, the factors that affect molecular weight and solubility of polyacrylamide are studied and suitable initiator system is selected. The optimum parameters of copolymerizing process are obtained as follows: the molar proportion of acrylamide and sodium acrylate is 7:3, the monomer concentration is 30%, pH value of solution is 12, the oxidizer (K2S2O8) concentration is 0.1%, the reducing agent (NH2CONH2) concentration is 1%, the chain-transfer agent concentration is 0.4%. The initial reaction temperature is 35℃.

讨论了影响聚丙烯酰胺分子量和溶解性能的因素，选取了合适的氧化-还原引发体系，确定了制备超高分子量速溶型部分水解聚丙烯酰胺的优化聚合工艺参数：起始共聚合反应温度为35℃，保持在密闭条件下的共聚合反应2.5h后，再将聚合反应温度升高到55℃，继续反应2h，反应结束；反应溶液单体总浓度：30％，共聚合反应溶液pH值：12，氧化剂K_2S_2O_8：0.1％，还原剂NH_2CONH_2：1％，共聚合反应中两种单体的投料比：丙烯酰胺：丙烯酸钠=7：3，异丙醇链转移剂：0.4％。

But when concentration of zeolite exceeds 4mg/L, compression ability of dewatered sludge is reduced markedly, sludge production rate will be increased greatly after zeolite is added.

但沸石含量大于4mg/L时，其污泥脱水后的体积压缩性能明显降低；投加沸石会成倍增加污泥产率。

Another way infixing R2 into the M-V model results in violating the restriction of the M-V models, which the covariance matrix must be positive definite matrix, and then leads the performance of the portfolio to be worse eventually.

而另一种方式权重配置方式，将R2嵌入M-V模型方式所得出的结果，则违反了M-V模型的限制条件之一，即所变化后的共变异矩阵违反了正定的限制，最后使得投组的绩效变差。

From the face of it, our businesses looked like any others and we gratefully satisfied the local mother trying to buy church-worthy shoes for the children, the father in for a good cigar and the newspaper, and the after-school crowd, who jittered near the juke box on the restaurant tiles.

我们热情接待顾客，满足他们的种种需要。住在附近的一名妇女上门替自己的孩子选购上教堂穿的鞋；做父亲的进来挑一支上好的雪茄，再要一张当天的报纸；放学后，孩子们蜂拥而至，在餐馆投币自动唱机旁的地板上手舞足蹈。

While the Cavs had the best record in the league, it was the Wizards who looked like the league's best on this night, outplaying the Cavs and holding on down the stretch after a clutch Jamison jump shot and a "crab-dribble" travel by LeBron James.

尽管骑士当时有着联盟最好的战绩，但是那个晚上奇才看起来才是联盟最佳，在贾米森把握住一个跳投而老北京一个&螃蟹步&被吹走不后，奇才战胜了骑士。

Even so, when countries hold a veto, they can sit out negotiations; when, on the other hand, they know they could theoretically be outvoted, they enter the room in a state of fear, knowing they could end up isolated.

尽管如此，当某个国家投了反对票后，可以静观其变；而在新的框架下，这些国家明了被否决的可能性，于是战战兢兢地走进投票室，担心自己成为极少数。

"The Warriors outworked us, they outhustled us, they got all the loose balls, all the rebounds," said Jason Terry, averaging 25.0 points against the Lakers this season."When you are scrapping for your playoff lives, you cannot come out and put up a performance like that. We are disappointed, but we have one more game on this trip, and we need to find a way to get a win."

&勇士完胜了我们，他们几乎抢下了所有投失的球，所有的篮板，&杰森-特里说道，特里本赛季对湖人的两场比赛中场均拿下25分，&当你正在为季后赛拼搏的时候，你不能拿出这样的表现，我们很失望，但是我们还有很多比赛，我们必须要找出赢球的方法。&

For me that was the best game of the playoffs, two overtimes and you have Timmy hitting a three.

这简直是一场不可思议的比赛，这一场对于我来说是整个季后赛中最好的一场。2次加时，然后邓肯投了三分。

He did not take a shot and never reentered the game once the quarter ended.

但是，他并没有投进一个球，并且在第二节结束后再也没有上场。

I believe I will be reincarnated as a snake .

我相信我死后会投胎成蛇。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。