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- The three treatments, including water-permeability plastic membrane mulching, common plastic film mulching and open grounding were carried out to contrast their economical effects. 摘要采用渗水地膜覆盖、普通地膜覆盖和露地3个处理,对比分析三者的生态效应。
- They are made of a common plastic resin. 它们是用一种普通的塑胶合成树脂做成的。
- Common plastic film 普通地膜
- They are made of a common plastic resin . 它们是用一种普通的塑料合成树脂做成的。
- Application of CAD technology to plastic film capacitors. CAD技术在有机薄膜电容器中的应用。
- Polypropylene Plastic film rather like clear polythene. In its oriented form, the most common material for film lamination. See OPP film. 一种塑料胶膜,它和透明的聚乙烯相似。向性化的聚丙烯是最常用的裱胶材料。参阅向性聚丙烯胶膜。
- Polypropylene: Plastic film rather like clear polythene. Its oriented form is the most common material for film lamination. See OPP film. 聚丙烯:一种塑料胶膜,它和透明的聚乙烯相似。向性化的聚丙烯是最常用的裱胶材料。参阅向性聚丙烯胶膜。
- The dessert is only accessible by tearing off a strangely gooey plastic film. 甜菜由撕离开一部奇怪地粘乎乎的塑料电影仅仅是可存取的。
- Ju Yixi, thin poly, plastic film blown film crew with a reasonable design. 聚乙稀,聚稀,塑料薄膜吹膜机组具有合理的设计。
- Inflated plastic film can protect any structure from the rain permanently or temporarily. 充气膨胀的塑料薄膜能永久或暂时地保护任何结构物不受雨水侵袭。
- The most successful had been the "space blanket" of vacuum aluminised plastic film. 最成功的是真空镀铝塑料膜的“太空服。”
- The after farmland use plastic film aging, can broken leave behind in the field, does not decompose rottenly. 农田使用的塑料薄膜老化后,会破碎遗留在田间,不分解腐烂。
- The effect of straw and plastic film dual mulch in dry-cultivation of rice planting was studied. 我国覆膜稻栽培研究始于1996年,但迄今都为地膜单元覆盖。
- Carbon Black Pigmented Ethylene Plastic Film, Test Method for Absorption Coefficient of (08. 碳黑加色乙烯塑料薄膜的吸收系数的试验方法(08。
- Test Method for Puncture-Propagation Tear Resistance of Plastic Film and Thin Sheeting (08. 塑料薄膜和薄板的耐裂口撕裂扩散的试验方法(08。
- Test Method for Tear Propagation Resistance of Plastic Film and Thin Sheeting by a Single-Tear Method (08. 用单剪切法测定塑料薄膜和薄板的耐撕裂扩展性的试验方法(08。
- Knowledge without common sense counts for little. 光有学问而无常识,则这种学问无甚价值。
- Packed in Plastic Woven Flexible Container, Lined with Plastic Film Bags, Shipped in Container,20Bags for Each. 塑料编织集装袋装,内衬塑料薄膜袋,集装箱装运,每箱20袋。
- In comparison with steel, novel conductive plastics have good anti-corrosiveness and their thermal conductivity is much higher than that of common plastics. 导热塑料是一种新型材料,它既具有普通塑料的耐化学腐蚀性能,又具有比普通塑料高得多的导热能力。
- Checking whether the package by the moistureproor plastic film is sure to keep off the oxygen. 检查防潮塑料膜真空包装是否密封良好;