可发射的

Radioisotope per second to launch tens of thousands of alpha particles, each alpha particle in its within a very short trip can produce thousands of positively charged ions, that is, with the oxygen ions and a layer of intensive electronic clouds.

放射性同位素每秒钟要发射上万个α粒子，每个α粒子在其很短的行程内可产生上千个离子，即带正电的氧离子及一层密集的电子云层。

At 0-60 ℃, the maximum fluorescence intensity of GCS-EPF decreased on heating and the relationship between fluorescence intensity and the change of temperature was linear; At pH=0-13.5, its fluorescence intensity increased with basification and completely disappeared at very acidic pH.

结果表明，修饰后水溶性壳聚糖的水溶液、固体粉末和薄膜在520 nm附近具有较强的荧光发射，其荧光强度不仅在0-60 ℃时对度有较快敏感响应，同时在pH=0-13.5时对pH也有较快敏感响应，具有双重敏感响应，因此可将其作为温度荧光探针和pH荧光探针的高分子材料。

Results: This paper specifies safety limits of impulse noise and blast wave from conventional weapons of 1.5 ms

本标准适用于暴露在常规兵器发射或爆炸所产生的脉冲噪声与冲击波中的无防护人员，常规兵器的科研生产也可参照使用。

In the absence of an appreciable magnetic field, the ensemble of nebular electrons interacts with ions to emit weak continuous radiation by free-free and free-bound transitions

在不存在可观的磁场时，星云中的电子系综与离子相互作用可通过自由-自由和自由-束缚跃迁而发射弱连续辐射。

These information can be used for fuzes design to improve fuzes environments recognize ca.

经过特征提取用于引信的设计中，可作为引信发射环境识别的有效手段。

Derived from the 1929 fortress gun (itself a development of the old 1897 field gun) with a semi-automatic breech and an automatic loader added, the "high power" APX 75mm gun fired a mle 1915 HE round with a reduced charge at 400 m/s and the mle 1915 AP round at 570 m/s (50mm penetration at 1000 m) and its two sights and stereoscopic rangefinder allowed a direct fire range of 2000 m.

&大威力&APX型75毫米炮由1929型要塞炮（旧式1897型野炮的发展型）衍生而来，加装了半自动炮尾和一个自动装填器，发射减装药的1915型高爆弹（初速400米/秒），及1915型穿甲弹（初速570米/秒，1000米距离可穿透50毫米装甲）。

The TOSA eliminates the need for costly bias-T networks and can save as much as 70% on laser driver power when compared to alternative implementations.

有了这个光发射组件，无需再使用昂贵的bias-T网络，与其他同类实施方案相比，这可节省70%的激光驱动器功耗。

As each base station uses lower transmitting power, the same frequency can be used in each different cell.

由于基站可用较低发射功率，因而相同的频道可在不同的小区内重复使用。

The results of the simulation analysis and experiments indicate that the loss of ultraviolet scattering transmission in atmosphere is high because of the particle scattering and absorbing in solar-blind zone; that is, the received power can descend 20 dB with the distance increasing 10 times. Therefore, the ultraviolet scattering is fit for short range communication. In short range, the pulse extension due to scattering is at microsecond order and its influence for low and moderate bit rate communication systems is weak. Since the light output power of a single ultraviolet LED is low, a multi-LED array can be used to increase the transmit power and extend the communication range.

仿真分析与实验结果显示：日盲区紫外光在大气中散射传输时由于大气粒子的强烈散射与吸收，传输损耗较大，距离每增加10倍，接收功率下降20dB，因此日盲区紫外光大气散射通信适用于近距离通信场合；近距离传输时散射造成的光脉冲多径展宽为微秒量级，对中低速通信系统影响较小；单个紫外LED发光功率较低，可通过多个LED阵列来提高发射功率，增大通信距离。

First, the paper discusses the technology of pulse echo BMUS, then give some design of ours. The project is leading of technology, easy for upgrading, strong for extending. It will make large merit in using.

论文提出的前端方案不仅实现了数字编码发射和数字编码接收，还具有技术新、易升级、可扩充性强、便于技术保密等特点，具有很大的实用价值。

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。