种球

In today's game, the split-finger fastball and four-seam fastball are the pitches of choice for hard throwers.

在现今的比赛里，快速指叉球及四缝线快速球是投手强力投球的两种球路。

The results show that the wind loads on the roof structure are mainly suctions. and the wind loads on the windward and leeward of the roof structure near the ground are positive. The differences among the results of four turbulence models were not notable.

结果表明，此类大跨度椭球屋面风压分布主要以吸力为主，靠近地面的屋面迎风面和背风面风压为正压。4种湍流模型的模拟结果之间差异较小，数值方法能够较准确地模拟该类大跨度椭球屋面的风压分布。

Spinel-rich spherule is a special Ca-, Al-rich inclusions in chondrites. Two spinel-rich spherules (GRV 020025-3R18 and GRV 021579-3R15) have been found from GRV 020025 and GRV 021579 carbonaceous chondrites collected from the Grove Mountains, Antarctica.

富尖晶石球粒状CAI是球粒陨石中一种特殊类型的CAI，在南极格罗夫山碳质球粒陨石GRV 020025和GRV 021579中共发现两个富尖晶石球粒状CAI-GRV 020025-3RI8和GRV 021579-3RI5。

The device is composed mainly of oil - ammoma column and ball dripping plates.

设计了一种制备球形加氢催化剂载体的新设备，它主要由成球柱和和滴球盘两部分组成。

Although sinkers can be an effective pitch, they aren't the complete answer to the problem.

伸卡球也许是一个有效的球种，但是却不是解决问题的唯一答案。

He obviously has the sinker, which is his most important pitch, usually sitting between 92-95 it can be considered one of the harder sinkers in the game.

他絶对是有他最重要的首要球种：絶佳下沉球，通常能维持在92~95英哩，而且可以维持著一场比赛的稳定。

The invention relates to a preparation method of epsilon-MnO2 layered structure nano-sphere comprising the following steps: adding potassium persulphate, manganese sulphate, ferric nitrate and concentrated sulfuric acid into hydrothermal reactor, charging deionized water and fully stirring, natural cooling the mixture to room temperature after hydrothermal reaction for 1-24 hours at 110-200 DEG C, washing and drying the product to obtain hexagonal crystal epsilon-MnO2 layered structure nano-sphere with a stable structure and uniform grain size.

一种ε-MnO 2 层状结构纳米球的制备方法，将过硫酸钾，硫酸锰，硝酸铁，浓硫酸加入水热反应釜中，加入去离子水充分搅拌后，在110-200℃水热反应1～24h后自然冷却至室温。得到的产物经洗涤干燥即得到结构稳定，粒径均匀的六方晶型的ε-MnO 2 层状结构纳米球。

Two methods of the nettroform stent assisted and balloon-assisted coiling may be effective to treat intracranial wide-necked aneurysms.

结论Neuroform支架或球囊辅助瘤颈重塑与电解可脱弹簧圈结合是治疗颅内宽颈动脉瘤的有效方法；两种方法各有优缺点，应根据宽颈动脉瘤的具体情况选择neuroform支架或球囊辅助进行栓塞。

Proposes a method for selecting optimal chiller unit configuration in design phase, in which the energy consumption of chillers is simplified to the function of actual cooling capacity and entering water temperature of the condenser, then the all-year building load frequency distribution under different outdoor wet-bulb temperature that determines the minimum entering cooling water temperature is obtained by dynamic load calculation, and finally, calculates the all-year energy consumption and energy consump...

提出一种在设计阶段对冷水机组方案进行优化配置的方法。首先，冷水机组的能耗计算简化为制冷机的实际制冷量和冷却水进口温度两个独立变量的函数。进一步，通过建筑动态负荷计算获得全年冷负荷频率特性以及相应的室外湿球温度分布，其中湿球温度决定了冷却水最低进口温度。最终，计算出各种冷水机组配置方案的全年以及不同冷负荷需求工况下的运行电耗，并得出最优化的节能方案。

In this dissertation, novel solution routes have been developed to prepare tungsten trioxide and tungstate nanomaterials with all kinds of morphologies using low-cost, facile sodium tungstate as raw material.

利用一种简单的方法制备了钨前驱体的中空纳米球，然后煅烧此前驱体得到了三氧化钨纳米中空球，在煅烧过程中没有破坏它的形貌。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。