Made of wood or polystyrene, nesting boards have holes drilled in them for bees to use to build their leafy nests.
巢套板由木头或聚苯乙烯制成，中间钻有小孔，以便蜜蜂用来筑造用树叶做成的巢穴。
Their methods include the use of strips of ion-exchanging plastic, braided with polystyrene to toughen them up....
他们的方法包括利用聚苯乙烯加固的离子交换塑料带。
That's why polystyrene is ideal for use in bicycle helmets and other protective gear.
这也是为什么聚苯乙烯是制作自行车头盔以及其他保护装置的理想材料的原因。
The direct esterification of acetic acid with benzyl alcohol by use of polystyrene supported aluminium trichloride as the catalyst.
采用聚苯乙烯负载三氯化铝为催化剂，对醋酸和苄醇的酯化反应进行了研究。
It can be used with phenolic antioxidants and its use include plastic, rubber and elastomer, nylon, polystyrene, etc.
它可与酚类抗氧剂并用，其使用范围包括塑料、橡胶制品及弹性体、尼龙、聚苯乙烯等。
At present, a lot of new buildings use organic kind of external thermal insulation materials, such as the molding of polystyrene, extruded polystyrene and site urethane foaming.
目前，海内新建建筑大量使用有机类外墙保温材料，如模塑聚苯板、挤塑聚苯板及现场发泡聚氨酯。
The reclamation of waste polystyrene is summarized, The use as fire retardant, ion exchange resin, latex paint, building adhesion agent, and pyrolysis fuel oil are introduced in detail.
归纳了以废旧聚苯乙烯为原料溴化作阻燃剂，磺化用作离子交换树脂，制备乳胶漆，建筑用胶粘剂，裂解成燃料油等回收利用情况。
The reclamation of waste polystyrene is summarized, The use as fire retardant, ion exchange resin, latex paint, building adhesion agent, and pyrolysis fuel oil are introduced in detail.
归纳了以废旧聚苯乙烯为原料溴化作阻燃剂，磺化用作离子交换树脂，制备乳胶漆，建筑用胶粘剂，裂解成燃料油等回收利用情况。
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