NASA's stuck Mars rover, Spirit, may be trapped in Red Planet sand, but up until March of this year it was still making important discoveries for the American space agency.

Gas water sand internal circulation fluidization cleaning for shell side water cooling equipment

壳程水冷设备气水沙内循环流态化清洗

Beach and Bank Protection Works at Outer bar and Inner stream Reach in the Yangtze River Estuary

长江口外沙内泓河段保滩护岸对策研究

This material can degradable rapidly in the hot and humid environment. And the higher temperature has, the faster degradable speed is. The material in the sand is degraded faster than which on the sand surface.

PLA纤维材料在高温高湿条件作用下能够迅速降解，温度越高，降解速度越快，且沙内快于沙表。

Soil water content has notable influence on the materials degradable and the higher water content has, the faster degradable speed is. The material on the sand surface is degraded faster than which in the sand.

土壤水分含量对材料降解也有显著影响，且水分含量越高，降解速度越快，且沙表快于沙内。

A, operator panel on weak or display digital display.

不不安纵背板上的数显微强或表现不全.

The integrated digital display system is capable for oil and dust resistance.

集合式数字显示系统,具有防油和防尘能力.

Multi-functional comprehensive protective relay digital display part shall be perfect, Calibration clear and accurate.

对多功能综合保护继电器的数码显示部分应完好, 刻度清晰,准确.

Digital display to control temperature.

数显温度控制.

Digital display measurement on line automatically.

数显自动在线测量.

Ozone concentration auto digital display controlling instrument.

臭氧浓度自动数显控制仪.

There are digital display, keyboard and wire board of 4-road road cells.

内置数显, 键盘及四路传感器接线板.

Dual digital display shows the actual temperature and the setting temperature.

双数码管直接显示实测温度和设定温度.

Digital display, test the relative moisture at the site rapidly.

数字显示, 用于快速测试施工现场的温度和空气的相对湿度.

A new technology for preparation of high purity aluminium hydroxide has been introduced in this paper.

本文介绍了一种全新的高纯氢氧化铝制备技术.

The flame retardance of red phosphorus and aluminium hydroxide filled polyethylene was studied.

研究了将红磷和氢氧化铝填充在聚乙烯体系中的阻燃性.

The effects of aluminium hydroxide on the flame retardant property of CM 140 B were researched.

研究了氢氧化铝对橡胶型氯化聚乙烯CM140B阻燃性能的影响.

The manufacturing status, methods of production and application of poly aluminium chloride were introduced in brief.

简述了聚氯化铝的生产现状, 生产方法及其在各个领域的应用.

I am a private collector of Amaryllidaceae.

我是一名收藏石蒜的私人收藏家.

Objective To investigate the non-alkaloid constituent of Hippeastrun vittatum ( Amaryllidaceae ).

目的研究 石蒜 科植物 花朱顶红中非生物碱类成分.

Reduced the nonlinear distortion, simultaneously also to increase the effective output, to raise the tube efficiency.

减少了非线性失真 、 同时也增加了有效输出功率 、 提高了管效率.