相比之下，人们可以从太空中看到在西班牙数百英里长的用来种植西红柿的聚乙烯薄膜。
In contrast, the hundreds of miles of polythene sheeting used to produce tomatoes in Spain can be seen from space.
作为另外一种预防杂草的防护措施，你可以一直使用一层厚重耐磨的聚乙烯底垫。
As an additional safeguard against weeds you can always use an underlay of heavy duty polyethylene.
机翼是由铺在碳纤维框架上的聚乙烯薄膜制成的。
The wings are made of a polythene film stretched over a carbon fiber frame.
从聚乙烯袋子上剪下的白色小标记依然安置在通往墓地的狭窄碎石小路上。
Little white markers cut out of polythene bags are still planted along the narrow rubble lane to the cemetery.
高密度聚乙烯是一种更为坚固的塑料。
低密度聚乙烯是一种很软且不易碎的塑料。
模拟了聚乙烯填充体系淘析器内的三维流场。
Three-dimensional flow field in the elutriator of polythene packed system is simulated.
N-异丙基丙烯酰胺与聚乙烯醇的质量百分比分别为5％和25％。
The N-isopropylacrylamide and the polyvinyl alcohol are respectively 5 percent and 25percent by weight percent.
这批货的包装是用顶部带有聚乙烯的纸箱。
This order shall be packed in cartons with polyethylene tops.
低密度的聚乙烯是PVC很好的替代品，它的生产过程相对简单，也不需要添加化学物质增加柔软性。
Low density polyethylene makes a nice substitute for PVC. It has a simple makeup and doesn't require additives to make it soft and pliable.
我不太担心聚乙烯(塑料袋的原料)，也不特别担心聚丙烯，用于酸奶瓶和人造黄油桶。
I'm not so worried about polyethylene [the stuff of plastic baggies]. I'm not particularly worried about polypropylene, which is the stuff that's used in yogurt containers or margarine tubs.
常见的有可能造成14-二恶烷污染的原料包括聚乙二醇硬脂酸酯、月桂醇聚醚硫酸酯钠盐、聚乙烯和鲸蜡硬脂醇聚醚-20。
Common ingredients likely to be contaminated with 1, 4-dioxane include PEG-100 stearate, sodium laureth sulfate, polyethylene and ceteareth-20.
两种废料都要单独进行收集，即最常见的废料（PET-第一类）与高密度聚乙烯（HDPE-第二类）要分开收集，其余的废料会被投入一个混合塑料品垃圾箱。
The most common types, PET (type 1) and HDPE (type 2), are collected separately; the rest go into a mixed-plastics bin.
在设计的时候在要记得，计划好钻孔的位置，如何从铝板料，聚乙烯或谷类食品盒上切割零件，还要平衡重量。
Remember to plan where the screws go, how you will cut your parts out of sheets of aluminum, HDPE, or cereal boxes, and to balance the weight.
遗憾的是国际足联并未鼓励南非将用于明年世界杯比赛耐旱的基库尤草坪替换为二星级的聚乙烯草坪。
So more's the pity that FIFA has not encouraged South Africa to replace the hardy Kikuyu turf intended for next year's World Cup with two-star polyethylene pitches instead.
他们说，那七位妇女是在工厂里进行了13个月的往聚乙烯板上喷漆的工作之后，才出现呼吸困难以及面部和胳膊上的皮疹。
They said the seven women had worked for between five to 13 months in a factory spraying paint on polystyrene boards before they developed breathing difficulties and rashes on their faces and arms.
底部的材料通常是由拉伸的聚乙烯材料制成，可以起到进一步的缓冲作用。这种材料和在汽车仪表盘和保险杠表面的吸能泡沫材料属于同一种材质。
Further cushioning is provided by the base material, which is usually made of expanded polyethylene-the same foamy stuff used in cars to provide shock-absorbent surfaces for dashboards and bumpers.
高密度聚乙烯和低密度聚乙烯是在名单中排在二位和三位的高聚物。
High-density polyethylene and low-density polyethylene were the second and third place polymers.
布拉斯科，一家巴西化学制品公司，已经把一种从甘蔗里提炼出来的常用塑料树脂——聚乙烯商业化了。
Braskem, a Brazilian chemicals firm, has commercialised polyethylene-a commonly used plastic resin-made from sugarcane.
介绍了热复合型聚乙烯胶带的性能、施工特点和应用效果。
The performances, construction precautions and application results of hot compound polyethylene tapes were introduced.
高阻燃聚乙烯高发泡产品是石油化工，建筑行业和制冷行业保温保冷的理想材料。
High flame resistant polyethylene high foaming products is petroleum chemical industry, construction industry, and refrigeration industries for cold insulation materials ideal.
便携杯子虽主要由硬纸板构成（重量占比达到约95%），但还是包含了约5%的聚乙烯（polyethylene）以很薄的涂层形式附着在杯子内侧。
While disposable cups are made predominantly of cardboard (about 95% by weight), they also contain about 5% polyethylene in the form of a thin coating inside the cup.
这家工厂也是一座世界级规模的化工厂，将源源不断地生产成千上万吨聚乙烯、聚丙烯（塑料的基本组成部分）和二甲苯（PX，用于合成聚脂纤维）。
The facility is also a world-scale chemical plant, pumping out thousands of tons of polyethylene and polypropylene, the building blocks of plastic, and paraxylene, which gets turned into polyester.
这就是当聚乙烯分子在挤压最后过程通过模具时发生的情况。
This is what happens when polyethylene molecules come through a die at the end of an extrusion process.
很可能不会是研究如何用聚乙烯控制金簇厚度的那个J.
A. Smith who studied how to control the size of gold clusters in polyaniline.
为了减少骨水泥聚乙烯套固定的失败率，推荐使用非骨水泥髋臼杯。
Cementless acetabular cups were introduced to alleviate the difficulty with fixation failure of cemented polyethylene sockets.
为了减少骨水泥聚乙烯套固定的失败率，推荐使用非骨水泥髋臼杯。
Cementless acetabular cups were introduced to alleviate the difficulty with fixation failure of cemented polyethylene sockets.
应用推荐