analysis of the effects of multi-population mean test in p. e. scientific research

significance test of difference between the population mean and the standard (standard deviation unknown, one-sided)

均值和标准差的鉴定（未知标准偏差的情况，单侧置信）

iq scores have a "population mean" of 100.

IQ得分的平均值为100。

what does a longer-living population mean for relationships and families?

人口寿命的延长对婚姻关系和家庭意味着什么？

a high-dimension feature spaces clustering and corresponding weather classification for multi-spectral satellite images

多光谱卫星云图的高维特征聚类与降水天气判别

gearless ultra low speed motor

无齿轮传动超低速电动机

study and design of speed increasing control circuit of low-speed motor

低速电机增速控制回路的研究设计

research on saturation influences to an angular servo system driven by permanent magnet low speed motor

永磁低速同步电机角度随动系统饱和特性影响的研究

you can adjust the high and low speed motor according to individual needs, convenient and quick.

电机高低双速可根据个人及工作需要随意调节，方面快捷；

no noise: the low speed motor reduced the mechanical vibration, totally solved the noise problem between gear and motor high speed running.

静音：超低速同步电机减少了机械振动，彻底消除齿轮及电机高速运转的噪声。

brushless motor structure and a similar low-speed motor structure.

无刷电机结构与低速电机结构类似。

since the cold and continuous low-speed motor running, will be affected due to lack of wind cooling, electrical safety threat to run.

而且自冷电机连续低速运转时，也会因风量不足影响散热，威胁电机安全运行。

industry: outdoor paint; rust; brick wall; non-slip tiles;

所属行业：室外涂料；防锈漆；墙面砖；防滑砖；；

industry: anti-fog agent; outdoor paint; interior paint;

所属行业：防雾剂；室外涂料；室内涂料；；

industry: mosaics; bricks, tiles and blocks; brick wall; outdoor paint;

所属行业：马赛克；砖、瓦及砌块；墙面砖；室外涂料；；

industry: rust; glazed tiles; outdoor paint; wear resistant tiles;

所属行业：防锈漆；釉面砖；室外涂料；耐磨砖；；

industry: log; glazed tiles; outdoor paint; brick wall; non-slip tiles; flooring;

所属行业：原木；釉面砖；室外涂料；墙面砖；防滑砖；复合地板；；

industry: wood paint; magnetic card lock; ic card lock; interior paint; outdoor paint;

所属行业：木工油漆；磁卡锁；IC卡锁；室内涂料；室外涂料；；

industry: safety signs; other safety equipment; outdoor paint;

所属行业：交通安全标志；其他交通安全设备；室外涂料；；

industry: outdoor paint; interior paint; wear resistant tiles;

所属行业：室外涂料；室内涂料；耐磨砖；；

industry: outdoor paint; interior paint; wood paint; phenolic resin;

所属行业：室外涂料；室内涂料；木工油漆；酚醛树脂；；