天然橡胶是几个世纪以来从植物汁液中收集来的。
The natural rubber has been gathered from the sap of plants for centuries.
从植物汁液中收集天然橡胶已经有几个世纪的历史。
Natural rubber has been gathered from the sap of plants for centuries.
但是直到今天，制造轿车胎仍然需要约14%的天然橡胶，载重胎是27%。
But even today natural rubber makes up around 14% of car tyres and 27% of lorry tyres.
然而，天然橡胶也有缺点。
石油在未来可能更加昂贵，所以，从经济及工程角度来看，天然橡胶似乎是不错的选择。
Because oil is likely to become more costly in the future, natural rubber looks an attractive alternative from an economic point of view as well as an engineering one.
尽管人类发明了合成橡胶，但现在没有能替代天然橡胶的好产品，因为人工合成橡胶弹力和强度还无法和天然橡胶相比。
Despite the invention of synthetic rubbers, there is often no good substitute for the real thing, for nothing artificial yet matches natural rubber's resilience and strength.
轮胎是由天然橡胶与合成橡胶制成的混合物，从而具有汽车制造商所要求的摩擦力和耐用性。
Tyres are made of a combination of natural and synthetic rubber to provide the grip and endurance required by carmakers.
目前，每一个汽车轮胎用近50%的天然橡胶制成，所有飞机轮胎都是用100%的天然橡胶制成的。
Today nearly 50% of every auto tire and 100% of all aircraft tires are made of natural rubber.
合成橡胶不具有子午线轮胎的那种强度，只有天然橡胶才具有所需的那种强度。
Synthetic rubber did not have the strength for radials; only natural rubber could provide the required sturdiness.
与天然橡胶同等质量的合成橡胶仍然不能实际生产。
Synthetic rubber of equal quality still cannot be practicably manufactured.
这一过程削弱了(手套内侧)天然橡胶表面的粘着性，(也因为其能)使得手套能在手上滑脱而不是粘在皮肤上，能易于穿戴。
This process reduces the surface tackiness of the natural rubber latex, making the gloves easier to don because they slide over hands without sticking to the skin.
天然橡胶为四大工业原料之一，也是极为重要的战略物资。
Natural rubber is one of the four main rural materials for industry.
聚氨酯薄膜的耐磨性胜过许多其他常见的聚合物。较天然橡胶耐磨五倍以上，是耐磨制品的首选材料之一。
Polyurethane film handily outperforms many other common polymers when it comes to abrasion resistance. Five times more resistant than natural rubber, the material is of choice of wear products.
绝缘层一般为纯天然橡胶，铜丝为无氧铜，这样，才能保证线芯的良好导电性及电缆的安全性。
The insulating layer is pure natural rubber, copper wire for copper, so, in order to ensure the safety of wire and cable of good conductivity.
该研究小组发现石油炼制过程中有一种名为环戊烯的副产品，它和某种聚合物结合后能生成一种非常类似于天然橡胶的物质。
The research team discovered a by-product of the oil refining process called cyclopentene. This was combined with a polymer to make a substance very similar to natural rubber.
合成橡胶在许多领域取代了天然橡胶。
Synthetic rubber has substituted natural rubber in many fields.
天然橡胶是否是线型链状分子的聚合物，这个问题已经解决了。
The problem whether natural rubber is a polymer with linear chain molecules has been solved.
这种绝缘手套是由天然橡胶制成的。
我们的家具的原材料主要是由天然橡胶，木材，胶合板和棕榈木组成。
Our furniture is made mainly out of natural rubber, wood, veneer and palm wood.
均聚物的例子有单体为异戊二烯的天然橡胶以及单体为乙烯的聚乙烯。
Examples of homopolymers are natural rubber, whose monomer is isoprene, and polyethylene, whose monomer is ethylene.
它比天然橡胶具有较好的抗挠曲开裂性能，但撕裂强度较低，动态模量较高。
It has a better flex cracking resistance than those of natural rubber but a lower tear strength and a higher dynamic modulus.
它优于天然橡胶，因为它具有高抗磨性、优异的耐热性和低温性能，以及良好的抗光照开裂性。
It is superior to natural rubber because of its high abrasion resistance, excellent heat resistance and low temperature properties and good resistance to light crazing.
本文重点研究了不同混炼方法、不同粘合体系对不同短纤维补强天然橡胶的影响。
The influences of different mixing methods and adhesive systems onthe short fibers reinforced natural rubber are mainly dealt with.
因为地理位置的原因，我国的天然橡胶产能受限，未来我国天然橡胶的需求增量要靠增加进口来补充。
Because of the geographical position, our natural rubber productivity is limited, and the increment of natural rubber demand in our country will be supplied by increasing import in future.
药物或食物过敏史，包括天然橡胶特种过敏反应。
Allergies to medications or food, including specific questions about natural rubber latex.
研究了无规聚丙烯与天然橡胶并用制备篷布的配方。
A composition for preparing tarpaulin is studied by using a tactic polypropylene and natural rubber.
研究了氢氧化镁、氧化锌及硬脂酸对环氧化天然橡胶(enr)硫化特性、硫化胶的力学性能及老化性能的影响。
The influence of magnesium hydroxide, zinc oxide and stearic acid on vulcanization behavior, mechanical properties and aging properties of ENR was investigated.
研究了氢氧化镁、氧化锌及硬脂酸对环氧化天然橡胶(enr)硫化特性、硫化胶的力学性能及老化性能的影响。
The influence of magnesium hydroxide, zinc oxide and stearic acid on vulcanization behavior, mechanical properties and aging properties of ENR was investigated.
应用推荐