种球

A woodwind instrument having a straight, cylindrical tube with a flaring bell and a single-reed mouthpiece, played by means of finger holes and keys.

长曲棍球一种源于美国的当地人玩的运动项目，由两组其中每组十人在草地上进行，参加者用一个带有网兜袋长柄的棍子将球带入对方的门

Plug valves and ball valves are more applicable to this purpose, therefore, mostly used for the shunt valve is selected in one of these valves.

旋塞阀和球阀较适用于这一目的，因此，大部分用于换向分流的阀门都选取这类阀门中的一种。

Forcing mixer designed by the design institute of Jinan iron and steel group has been used in production process of 8m2 pellet shaft furnace of No. 3 ironmaking plant,and it has got good profit.

1概况在球团生产中原料的强力混合技术是用来降低添加剂加入量，最大限度的解决原料配料后不均匀分布的一种新技术、新设备。

The process in which iron ore pellets are pre-reduced in a shaft furnace and further reduced in an iron bath reactor is a very competitive smelting reduction process.

以球团矿为原料，采用竖炉预还原和铁浴终还原相结合的二步法流程是一种极具竞争力的熔融还原流程。

In this work,α-Al〓O〓, form the high temperature calcined product of Al 〓 by Debye method, was used as raw material to fabricate alumina ceramics. The seed crystal was added by ball milling of pure α-Al〓O〓 and the alumina ceramics with elongated grains has been experimentally fabricated.

本研究通过拜耳法制备的工业氢氧化铝粉经高温煅烧过程分解转相得到高温稳定的α-氧化铝粉作为制备氧化铝陶瓷的原料，利用球磨过程的磨耗向氢氧化铝粉中引入高纯氧化铝作为晶种，制备出了具有长柱状晶的氧化铝陶瓷。

Propagation and development characteristics of surface instability of the spherical premixed flames for methanol-air-nitrogen mixtures were studied by using a constant volume combustion chamber and high-speed schlieren photography system.

利用高速纹影摄像法在定容燃烧弹内研究了不同燃空当量比、初始压力、初始温度和气体稀释度下甲醇－空气－氮气混合气预混球型火焰的发展特性以及3种火焰锋面的不稳定性。

Based on the measure of sand geometry in M Block and comparison of results calculated with Spherical, Exponential and Gaussian Model, it is concluded that different variogram models get very different variogram range in major and minor direction.

在详细解剖M油田的砂体几何形态的基础上，对比分析球模型、指数模型和高斯模型的计算结果，3种模型计算的变差函数长变程误差15％，短变程误差25％，方向也不一样；同时运用不同模型计算的砂体体积亦有较明显的差别：砂体越发育，砂体连通性越强，不同模型计算的砂体体积相差越小；砂体越不发育，砂体连通性越差，不同模型计算的砂体体积相差越大。

Small round-bodied bird that was chased as part of the game of Quidditch for about a century in the 1200s and 1300s, until the bird became nearly extinct.

一种身体滚圆的小鸟，在十二到十三世纪的时候魁地奇比赛里用来作被追逐的球，直到它濒临灭绝。

In studying, we find that flat end milling cutter, rose cutter and filled-end milling cutter can be expressed by the same mathematic model. Which makes it easer to exploit the system.

通过研究对比发现，平面端铣刀、球头铣刀和带倒圆的端铣刀可以建立一种数学模型，这样极大地方便了编程系统地开发。

This paper introduces pelletizing and trial run experiments of pellet made from seven kinds of imported concentrate s at Maanshan Steel.

介绍了马钢配用7种不同进口精矿进行造球和工业投笼试验的情况。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。