查询词典 population explosion

The author comes to the conclusions that: the size of LSP is large, and its growth rate is high; the sex ratio of LSP is higher than the total population and working-age population, and comparatively speaking, its age structure is younger and cultural-educational quality is lower; the LFPR of total population goes steadily up; the characteristics of age-specific LFPR are similar to other countries; the LFPR of illiterate and semi-illiterate is lowest, and among the other population the higher the educational level, the lower the LFPR; the regional differences in the size, age-sex structure and cultural quality of LSP are obvious, and so is the LFPR.

首先对中国劳动力供给人口和劳动力参与率进行了研究，主要结论如下：劳动力供给人口的总量大、增长快；劳动力供给人口的性别比高于总人口和劳动年龄人口，其年龄构成比较年轻，文化素质也较低；总人口劳动力参与率稳步上升，1978—1994年，中国总人口劳动力参与率的回归模型为：Bt=40.1611(t-1977)〓(R〓=0.9150)；中国分年龄组劳动力参与率的特征与其他国家相类似，在15岁及以上人口中，文盲半文盲人口的劳动力参与率最低，其他文化程度人口则是文化层次越高，劳动力参与率越低。

Polymorphic loci, polymorphic frequencies, Nei's index of phenotypic diversity and Shannon index were 228, 62.81%, 0.2781, 0.4092, respectively, among Changjiang population, and 269, 74.10%, 0.3077, 0.4493, respectively, among Minjiang population. The results suggested that the two East Sea eel populations had abundant genetic variation, and the Minjiang river population was lower than the Changjiang river population, which indicated that high levels of genetic variation existed in the natural populations of Chinese Anguilla japonica.

结果表明：6对选择性扩增引物共检测到363个位点其中闽江流域群体和长江口群体的多态位点数、多态位点频率、Nei's基因多样性系数、Shannon's信息指数分别为228和269、 62.81%和74.10%、 0.2781和0.3077、0.4092和0.4493，日本鳗鲡这两个群体均具有较丰富的遗传变异，但闽江流域群体的明显低于长江口群体。

If we don't carry out population control, there will be a population explosion some day.

如果再不进行人口控制，迟早会发生人口爆炸的。

The main reasons caused theses problems are as follows: beyond marine carrying capacity and environment capability by predatory and extensive manners, over-exploitation of bioresources resulted in the disturbance of marine ecosystem and the obstruction of matter and energy circulation. Marine environment pollution and unreasonable oceanographic engineering caused serious damage of marine entironments, weakness of marine eco-functions, and degradation of marine ecosystems. The population explosion as well as the trend of population towards coast inflicted tremendous pressure on marine resources and environment. The weakness of marine laws system and the infirmness of macroscopical control by government policies relulted in unreasonable utilization, inefficient management, and insufficient protection of marine bioresources.

其主要原因是：对海洋生物资源的掠夺性、粗放性开发，造成资源过度利用，超出海洋承载力及其环境容量，物质能量循环出现障碍，海洋生态系统失衡；海洋环境污染和不合理的海洋开发工程，造成生境破坏，生态功能减弱，生态系统退化；人口增长和趋海发展，给沿海资源环境造成巨大压力；涉海法律法规体系薄弱，国家宏观政策调控不力，未能合理利用和有效管理、保护海洋生物资源和海洋环境。

Fast-falling birth rates and rising AIDS deaths are stifling the population explosion — and could lead to a decline in global population in the second half of the 21st century.

迅速降低的出生率和艾滋病死亡人口的增加正在抑制全球人口爆炸——而且可能导致全球人口在21世纪的后50年下降。

Equipped with acid mist removing and anti-explosion device, which will prevent the fire and explosion caused by spark.

装备了过滤酸雾和隔爆装置，更安全可靠。

Equipped with acid mist removing ﹠anti –explosion device,which will prevent fire and explosion caused by spark.

装备了过滤酸雾和隔爆装置，更安全可靠。

Also by earnestly studing and investigating in practice, some orginal devices and expresimental methods have been improved on; for : the progress of the gas admeasurement in the gas explosion,and the betterment of the explosion suppression equipments.

同时在实践中认真探索和钻研，对原有的一些设备和实验方法进行了改进，如：气体爆炸实验中配气方法的改进、爆炸抑制装置的改进等。

Its maximum explosion pressure and the maximum pressure rise speed is higher than under obviously the same density the pure aluminite powder and time the pure cyclotrimethyl dust explosion value.

其最大爆炸压力和最大压力上升速率明显高于相同浓度下纯铝粉和纯黑索金粉尘爆炸时的值。

Experimental investigation indicates that shock wave velocity and shock wave pressure of beginning which were produced with aluminize RHTL were smaller than that of insensitive RDX in steel plate, however, attenuating velocity of shock wave velocity and shock wave pressure which were produced under contact explosion with aluminize RHTL were quciker than that of insensitive RDX in steel plate, when steel- plate had been separately operated under contact explosion with insensitive RDX and aluminize RHTL, and shock wave press had changed suddenly in the interface between steel and aluminum, In the circumstances, the shock wave velocity had ascended suddenly and shock wave pressure had descended suddenly.

实验研究表明：RHTL炸药爆炸加载钢板下，介质中的冲击波初始速度和初始压力相对RDX较小，衰减相对较快；钝化RDX和含铝炸药RHTL分别作用于钢铝复合板时，在分界面处冲击波速度和压力都发生突越，冲击波速度突跃，冲击波压力突降。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。