If possible, in the year before you plant potatoes, plant a cover crop to improve the soil and the potato production.

Variation of nutrient elements of winter cover crop residues in agroecosystems under no tillage and conventional tillage

免耕和常规耕作农田生态系统冬季覆盖作物残茬分解和养分变化

Carbon fixation in every cover crop treatment is higher than that of winter fallow cropland.

黑麦草的碳蓄积量显著高于紫云英和油菜，各覆盖作物处理碳蓄积量均显著高于冬闲田。

Effects of Former Stubble Winter Cover Crop on Microbial Characteristics in Paddy Soil

前茬冬季覆盖作物对稻田土壤的生物特征影响

The Effect of Winter Cover Crop on Microbial Ecological Under the No-tillage System

免耕条件下覆盖作物对微生物生态的影响

The effect of winter cover crop on soil organic carbon and crop yield

农田冬季覆盖作物对土壤有机碳含量和主作物产量的影响

Faced with major domestic and foreign customers, acceptance of the auto cover die seized fixture design drawings, and related technology support, technical services business.

主要面对国内外客户，接受各汽车覆盖件模检夹具设计图纸工作，及相关技术支持，技术服务等业务。

Design CAD of Toilet Cover Die

坐便器上盖模具的计算机辅助设计

Application of Overhaul Closed Type Cover Die

闭式套模翻修的应用

On Manufacture& Adjustment of Large Automotive Cover Die

试论大型汽车覆盖件模具制造调试的途径

Research and development of CAPP for motor cover die

汽车覆盖件模具CAPP系统的开发研究

The closed type cover die is working in repeated impact, cold and hot alternation and high pressure friction situation. The die is easy to be crashed, including wearing, plastic deformation, hot cracking etc.

闭式套模在反复冲击、冷热交变、高压摩擦的情况下工作，比较容易产生磨损、塑性变形、热裂纹等损坏失效。

OPTIMIZATION TO MATH MODELS IN ROLLING PROCESS Application of Overhaul Closed Type Cover Die

轧制过程数模调优闭式套模翻修的应用

After we learnt enzymatic isolation method of YANG Hong-yuan and ZHOU Chang, we explored to develop a pressure cover glass method of observation on embryo sacs.

我们在学习了酶解法之后，摸索研究了一种观察甜菜胚囊的压片法。

The vacuum degree between the inner and cover glass tubes plays a very important role in heat loss and the life time of all-glass evacuated collector tube.

全玻璃真空太阳集热管内外玻璃管夹层间真空度的保持情况对有效降低热损、提高太阳能的利用率、延长集热管的寿命都有至关重要的作用。

Consequently, ion exchange strengthened cover glass can increase the reliability of solar cell, which can improve service efficiency and prolong the life of solar cell.

因此化学钢化能提高太阳能电池长期工作的可靠性，对提高太阳能电池的使用效率及寿命具有实际意义。

In this part, the microfluidic chip was made of PDMS. The PDMS channel was fixed on the cover glass.

在这部分实验中，我们自己制作了微流控芯片，芯片通道采用PDMS膜制成，然后将膜封接到盖玻片上。

Finally, the channel-structured glass substrate was sealed to a cover glass plate by using room temperature bonding technique.

最后，采用室温键合技术，将带有微纳结构的基片与盖片封合成玻璃微-纳流控复合芯片。

Be careful: the cover glass is fragile!

注意：盖玻片是很容易坏掉的！

An Extended Dectection Method for Land Cover Transformation

一种扩展的土地覆盖转换像元变化检测方法

Based on the experimental results, a method is proposed for calculating the shear-resistance capacity of the beam-column joints strengthened by composite cover of high strength wire cable mesh and polymer mortar, and the compute results agree well with the experimental results.

并且，在试验基础上提出了震损后采用钢绞线网-聚合物砂浆复合面层加固钢筋混凝土框架节点抗剪承载力的计算方法，计算结果与试验结果符合良好。