Recently, researchers have reported on new ways to break down different kinds of plastics. The new studies could lead to easier high-quality (高质量的) recycling, and help deal with toxic (有毒的) plastic pollution.The world is being covered by plastic, but only about 9% of plastic product...
Laser-Induced Breakdown Spectroscopy (LIBS) was applied for the identification of various kinds of plastics for management and recycling of plastic waste. In order to fingerprint these plastics, a laser-produced plasma emission was recorded for spectral analysis of various kinds of plastics. The ...
There are over fifty different types of plastics. Many of them are used___packaging (包装). Most plastics do not break down and a lot of them are not recyclable. When they are___, they can pollute the air and make it very dangerous. One of the...
Recently, researchers have reported on new ways to break down different kinds of plastics. The new studies could lead to easier high-quality (高质量的) recycling, and help deal with toxic (有毒的) plastic pollution. The world is being covered by plastic, but only about 9% of plastic produ...
The other kind is Halomonas Boliviensis(利维亚盐单胞菌), which lives in the salty waters of Bolivia. It eats the sugar that the first bacterium produces and then it can produce polymers(聚合物). Polymers are used to create bio-plastics. The way the bacteria store polymers is similar as ...
A tubular free-fall separator for the electrostatic separation of particles of a plastics mixture, includes two parallel opposite rows of vertical tubes which are either arranged rotatably around their own axis or are fixedly installed and are connected with a direct current voltage source for maint...
According to Newsweek.One of the bacteria can use sunlight to produce sugar. The other land eats the sugar and produces polymers(聚合物). Polymers are used to create bio-plastics. The way the bacteria store polymers is similar as humans store fats.The new way to produce bio-plastic has ...
69.The advantage of"Security One Card"is that it___.A.could remove the burden of taking all kinds of plastics cardsB.would he very safeC.could save your moneyD.could have a lot of magnetic strips on it70.The underlined phrase"takes off"in the last but one paragraph probably means__...
69.The advantage of"Security One Card"is that itC.A.could remove the burden of taking all kinds of plastics cardsB.would he very safeC.could save your moneyD.could have a lot of magnetic strips on it70.The underlined phrase"takes off"in the last but one paragraph probably meansB....
根据文章第一段Plastics can take hundreds of years to break down on their own.Very few kinds are highly recyclable.This is because of the way plastics are formed. (塑料需要几百年才能自行分解。高度可回收利用的品种非常少。这是因为塑料形成的方式。)可知,塑料很难分解是因为塑料形成...