半寿命

The paper studied the improved process for preparing phosphorus sulfochloride, where high-effective liquid catalyst was employed, and investigated the catalytic activity and service life of the novel catalyst. The optimum process conditions of batch and semi-continous operation were obtained by single factor experiments and modified simplex experiments.

本论文研究了采用高效液相催化剂制备三氯硫磷的新工艺，对催化剂寿命和性能进行了考察，利用单因子实验和改进单纯形实验找到了间歇操作和半连续操作的最佳工艺条件。

Our company specialized in manufacturing rear bridge differential speed half axle gear,planet gear,cross axle,various of fix bolt and so on in differential speeder of heavy,medium-sized,lighttruck.

公司专业生产重型、中型、轻型卡车后桥差速器半轴齿轮、行星齿轮、十子轴、差速器各种紧固件螺丝等、生产工艺精锻成形、具有精度高、使用寿命长等特点。

Mechanical-type traps can be divided into the free float-type traps, the free semi-float type trap, pole float-type traps, inverted bucket type, etc. 1, Free Float Steam Trap Free float-type trap is simple, only one moving part within the fine grinding of stainless steel hollow float, float is both open and close parts, no wearing parts, long service life, steam traps with Y series automatic row-house air devices, very sensitive, automatically scheduling the air, high quality work.

机械型疏水阀又可分为自由浮球式疏水阀、自由半浮球式疏水阀、杆浮球式疏水阀、倒吊桶式等 1、自由浮球式疏水阀自由浮球式疏水阀的结构简单，内部只有一个活动部件精细研磨的不锈钢空心浮球，既是浮子又是启闭件，无易损零件，使用寿命很长，疏水阀内部带有Y系列自动排空气装置，非常灵敏，能自动排空气，工作质量高。

Mechanical-type traps Bellow Seal Valves are free float-type, the free semi-float type, lever-type float, inverted bucket type, and so 1, free float steam trap: Free float steam trap of the structure is simple, the internal moving parts is only one fine grinding of stainless steel hollow float, float is also a hoist parts, no fragile parts, life is very long,"Silver Ball" brand within the zone trap there are Y series automatic row of air devices, very sensitive, can automatically row of air, the work of high quality.

机械型疏水阀有自由浮球式、自由半浮球式、杠杆浮球式、倒吊桶式等 1、自由浮球式疏水阀：自由浮球式疏水阀的结构简单，内部只有一个活动部件精细研磨的不锈钢空心浮球，既是浮子又是启闭件，无易损零件，使用寿命很长，&银球&牌疏水阀内部带有Y系列自动排空气装置，非常灵敏，能自动排空气，工作质量高。

This equipment is mainly composed of steam still, alcohol content-adjusting pot without last distillate, air exhausting pipes, cooler and filtering system ( there are filtering material handled in special way inside), automatic temperature control and instrument display, which can make alcohol content reach 10°-89 °, there is no last distillate, the alcohol produced by this equipment is like mineral water, pure, without different taste or foreign matter but with splendid quality, and this equipment produces spirits faster as spirits can be produced in half an hour and 200 jin grains can be distilled in about 2 hours, which save half of the fuel compared with traditional technique; and its characters also include air distillation, no explosion, long service life, and easily being cleared and removed.

该设备主体由蒸汽蒸馏釜、无酒尾酒度可调锅、导气管和冷却器及过滤系统(内有经特殊处理过的过滤材料)、自动控温、仪表显示，可使酒度在10—89度间调节，没有酒尾，所产的酒清澈如矿泉水，口味纯正，无邪无杂，品质超群，该设备出酒快，只需半小时左右有酒出200斤粮食需2小时左右即可蒸馏完毕，比传统工艺节约燃料50％；常压蒸馏、无爆现象，使用寿命长易清洗易搬动。

The absorption spectrum and fluorescence of Ni2+-doped NASL glass and glass ceramics were measured. It shows that the Ni2+-doped NASL glass ceramics has a broad fluorescence spectrum centering at 1185 nm with full width at half maximum of about 300 nm.

测试了Ni2+掺杂NASL玻璃和微晶玻璃的吸收光谱和荧光光谱，发现Ni2+掺杂NASL微晶玻璃有较宽的荧光光谱，荧光中心位于1185 nm，荧光半峰全宽约为300 nm，荧光寿命和受激发射截面的乘积为4.2×10-24 cm2·s。

To attaining longlived charge separated states, the new compounds 7 and 8 of C60-S-2-thioxo-1, 3-dithioles derivatives were synthesized by Diels-Alder cycloaddition reaction. The structures generated by AM1 were used as the initial configurations for the density functional optimization at the B3LYP/3-21G level for all carbon and sulfur clusters, and some geometry conformation indexes were obtained. We found that C60 has been half-packed by the curved 2-thioxo-1, 3-dithioles derivatives.

为了获得具有长寿命电荷分离态的[60]富勒烯－富硫衍生物有机功能分子，我们设计了用单键硫桥键联[60]富勒烯和硫酮衍生物的分子7和8，用半经验AM1方法得出最低能量的几何结构，在此基础上用密度泛函 B3LYP/3-21G方法，对其进行计算，得出电子相关的优化参数，预测其稳定性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。