This paper introduced the selection of net agent, the definition of net agent length and added quantity, improving of net cover sand strong etc.

介绍了网络剂的筛选、网络剂长度及加量的确定、网络覆膜砂强度的改进及影响网络覆膜砂的各种相关因素。

youdao

Salt basins, sand and lava cover much of its 40,000 square miles (103,600 square km), and the soil is so lifeless that NASA can design their Mars ground tests on Atacama land.

大约4万平方英里(103,600平方公里)的地区都被盐盆地，沙地和熔岩所覆盖。因为这里的土壤毫无生命力所以美国国家航空及太空局可以在这个岛上进行火星地面测验。

youdao

Salt basins, sand and lava cover much of its 40,000 square miles (103,600 square km), and the soil is so lifeless that NASA can design their Mars ground tests on Atacama land.

大约4万平方英里（103,600平方公里）的地区都被盐盆地，沙地和熔岩所覆盖。 因为这里的土壤毫无生命力所以美国国家航空及太空局可以在这个岛上进行火星地面测验。

youdao

These sand dunes cover more than seventy-thousand hectares of desert.

VOA: special.2010.01.04

That has Leveaux wanting to go as simple as possible and he is tempted to just cover the stage with sand and then set fire to it.

WSJ: Bloom, Rashad in Broadway's 'Romeo and Juliet'

Cocoon Portable features oversized rubberized buttons, a special rubberized back panel cover for protection against sand, dust and water, as well as an integrated carry handle and a retractable slot for the remote control.

ENGADGET: Denon intros Cocoon Home and Portable AirPlay docks, will transform songs into musical butterflies

After a number of very productive meetings, the Huffington Post has agreed to draw a bright line in the sand between staffers and bloggers, with (unpaid) bloggers no longer being assigned stories or expected to cover news.

FORBES: Newspaper Guild Drops Boycott of the Huffington Post