小球

Or underspin backhand then you cannot have a good drop shot.

你没有一个好的切削或反手下旋技术，那么你也不会有好的放小球技术。

Little-league sports, by contrast, are fundamentally egalitarian institutions, inclusive, unselective and welcoming of different levels of ability

相比之下，小小球联的体育运动则从根本上是平等的组织，它包容一切青少年，不进行筛选，欢迎各种能力的孩子参加。

Little-league sports, by contrast, are fundamentally egalitarian institutions, inclusive, unselective and welcoming of different levels of ability.

译文相比之下，小小球联的体育运动则从根本上是平等的组织，它包容一切青少年，不进行筛选，欢迎各种能力的孩子参加。

But it also has naughty and wilful one side , and one small sphere metropolis lets it give rise to dense interest .

但它也有调皮和任性的一面，一个小球都会让它产生浓厚的兴趣。

objective to determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of edaravone, by gas chromatography.methods sample solution was injected on a gdx column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.the residue was calculated by the external standard method.results the linearity was good over the range of 25 μg/ml～400 μg/ml,with the correlation coefficient of acetone being 0.996 and the average recovery 96.8%.conclusions the method was proved to be simple,rapid,practical and highly sensitive.it is an efficient method for the quality control of acetoacetic ester.

摘要］ 目的：用气相色谱法测定依达拉奉合成起始原料乙酰乙酸乙酯中丙酮的残留量。方法：采用固定相为二乙烯苯乙基乙烯苯型高分子多孔小球（直径为0.18 mm～0.25 mm），氮气为载气，用外标法测定乙酰乙酸乙酯中残留丙酮的含量。结果：该方法在丙酮浓度范围在25 μg/ml～400 μg/ml内呈良好的线性关系，响应曲线相关系数为0.996，平均回收率为96.8%。结论：本法简便，快速、实用，灵敏度高，可有效地用于乙酰乙酸乙酯的质量控制。

Objective To determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of Edaravone, by gas chromatography.Methods Sample solution was injected on a GDX column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.The residue was calculated by the external standard method.

摘要］ 目的：用气相色谱法测定依达拉奉合成起始原料乙酰乙酸乙酯中丙酮的残留量方法：采用固定相二乙烯苯乙基乙烯苯型高分子孔小球（直径为0.18 mm～0.25 mm），氮气为载气，用外标法测定乙酰乙酸乙酯中残留丙酮的含量。

Zhou took great interest in astronomy beginning in 1979, when he was only 14 years old. On 1983 May 11, after observing the comet C/1983 H1 (IRAS-Arski-Alcock), he transferred his efforts to comet searching and observation. Before 1989 June 22, Zhou used a 55-mm-diameter (25x) aerological theodolite to search for comets.

周兴明先生兴趣天文始于1979年，他14岁。1983年5月11日，他第一次看到彗星C/1983d(Comet IRAS-Araki-Alcock)后，他将他的兴趣转向彗星的发现和观测。1989年6月22日前，他的寻彗仪器是口径55mm，放大率25x的小球测风经纬仪。

And the content of algal and activity sludge trapped in bead has effect on removal of nitrogen and phosphorus from sewage.

包埋于小球中的最初藻和活性污泥的量影响其对污水中氮磷的去除效果。

After feeding of 20 d, 40 d and 60 d, the activities of nitric oxide synthase, bacteriolytic, superoxide dismutase, alkaline phosphatase and acid phosphatase in the serum were determined and the relativities between them were also analyzed.

在饲料中添加不同剂量的嗜酸小球菌投喂凡纳滨对虾，并在投喂后的20、40和60d，分别测定凡纳滨对虾血清中的一氧化氮合酶、溶菌活力、总超氧化物歧化酶、酸性磷酸酶、碱性磷酸酶，并分析了这5种酶之间的相关性。

The results showed that feeding Lioediococcus acidilactici could signiticantly promoted the activities of NOS, bacteriolytic, SOD, AKP and ACP.

结果显示，嗜酸小球菌能有效提高凡纳滨对虾体内的NOS、溶菌活力、T-SOD、ACP、AKP的活性；NOS与溶菌活力存在显著正相关性(P.05)，与SOD存在显著负相关性，溶菌活力与AKP存在显著负相关性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。