Historians believe the Inca began building Machu Picchu around the 1450s, but because they left no written records behind, no one knows exactly what their purpose was. Machu Picchu was built in the classical Inca style, with polished dry-stone walls.

Machu Picchu was built in the classical Inca style, with polished dry-stone walls.

马丘比丘的建筑具有印加传统风格，抛光干石墙。

A preliminary study on biology of chub mackerel ( scomber japonicus) and round SCAD ( decapterusmaruadsi) in the southern East China Sea

东海南部鲐鲹鱼生物学特性的初步研究

CPUE standardization of chub mackerel ( Scomber japonicus) for Chinese large lighting-purse seine fishery in the East China Sea and Yellow Sea

我国东、黄海鲐鱼灯光围网渔业CPUE标准化研究

On above parameters, the utilization situation is simulated by dynamic synthetic model, and the result show that the stock of Scomber japonicus has been severely overfished.

利用上述参数，动态综合模型模拟的结果显示，该资源过度捕捞已很严重。

By comparing Scomber japonicus's growth status of different periods, the growths of 1960 ', 1980' and 2000 'are similar, but that of 1970' is obviously different.

比较不同时期鲐鱼的生长情况显示，20世纪60、80年代和21世纪初期鲐鱼的生长较接近，而20世纪70年代的鲐鱼生长情况与其他3个时期的鲐鱼生长相差较大。

Environmental effects on fishing efficiency of Scomber japonicus for Chinese large lighting purse seine fishery in the Yellow and East China Seas

海洋环境对东、黄海鲐鱼灯光围网捕捞效率的影响

The results showed that the growth and metabolism of Hydrocharis asiatica Miq were inhibited by Cd. The plant exhibited a decrease of the chlorophyll content, and the photosynthetic rate, an increasing of the respiration rate, the soluble sugar content and POD activity.

结果显示，Cd能抑制水鳖的代谢和生长，使叶绿素含量与光合速率下降，呼吸速率与可溶性糖含量增加，POD活性增强；

The effect of different Hg 2+ concentrations on the content of chlorophyll, chlorophyll a/ b values, the activity of SOD, CAT, POD and the soluble protein content of Hydrocharis dubia BL. Backer were studied.

用不同浓度的Hg2+溶液培育水鳖，研究Hg2+对水鳖叶片中叶绿素含量、叶绿素a/b值、SOD、CAT、POD活性以及可溶性蛋白含量的影响。

The Effects of Cr~ ( 6+)'s Pollution on the Ultrastructure of Hydrocharis dubia and Cell Membrane of H.verticillata, Brasenia schreberi, Trapa bispinosa

Cr~（6+）污染对水鳖的超微结构及菱、莼菜、黑藻细胞膜的影响

The effects of Cr 6+'s pollution on the ultrastructure of Hydrocharis dubia mainly showed: plasmodesmata fractured, nuclei deformed in different ways, chloroplast enlarged, granum disorganized.

Cr6+污染对水鳖超微结构的影响主要表现在：胞间连丝呈现不同程度的断裂；细胞核出现各种各样的变形；

The effects of Cd on Hydrocharis asiatica Miq and the function of Pi decreasing the stress of Cd were proved in this paper.

研究了Cd对水鳖生理生化过程的影响及Pi对Cd胁迫的缓解作用。

Toxic Effect of Hg~ ( 2+) on Physiology and Ultrastructure of Hydrocharis dubia

Hg~（2+）对水鳖（Hydrocharis dubia）叶片生理生化及超微结构的毒害效应

Physiological and structural responses of Hydrocharis dubia leaves to different concentrations of Pb~ ( 2+) stress

水鳖叶片对不同浓度Pb~（2+）胁迫的生理和结构响应

How much money do the Saudis have invested in america, roughly?

沙特阿拉伯在美国投资了多少钱，大致上？

The Chinese, after all, have money and the Saudis have oil.

毕竟，中国人拥有金钱，沙特拥有石油。

We visited the Faisal Mosque at the base of the Margalla Hills, which was built by the Saudis for millions of rupees.

我们去参观访问了位于马加拉山丘下的费萨尔清真寺，这是沙特阿拉伯人花数百万卢比盖起来的。

How'd it go with the saudis?

和沙特阿拉伯人相处得如何？

These Scotchmen died thinking of Ben Lothian, as did the Greeks recalling Argos.

那些苏格兰士兵，在临死时还想念着班乐乡，正如希腊人回忆阿戈斯①一样。

I have been trying all my life to like Scotchmen, and am obliged to desist from the experiment in despair.

我一生一直为了令自己喜欢英格兰人而努力，但我不得不在绝望中放弃这一项实验。

Study on Effects of Saccharum Germanium of Glossy Ganoderma on Immunity and Antitumor

灵芝多糖锗的抗肿瘤及免疫增强作用研究