| 词汇 | polyurethane |
| 释义 | polyurethane noun[ U ] uk /ˌpɒl.ɪˈjʊə.rə.θeɪn/ us /ˌpɑː.lɪˈjʊr.ə.θeɪn/ a plastic used especially as a type of varnish or as a protection for delicate objects聚氨基甲酸乙酯，聚氨酯 Plastics & rubber Bakelite bioplastic Bubble Wrap Cellophane celluloid injection moulding latex Lucite melamine microbeads polyethylene polypropylene polystyrene polythene polyvinyl chloride thermosetting uPVC vinyl vulcanization vulcanized Examples of polyurethanepolyurethane This assembly is surrounded by low-density polyurethane foam for thermal isolation. They were corrected by custom tailored polyurethane patches delivered and supported by modified balloon catheters. A laryngeal seal was made of 12-20 toroidal shaped sheets (gills) of polyurethane film (diameter 2.5 cm, thickness 25-75 urn). A polyurethane sphere may be relatively heavy, however such a wheel can be made hollow to reduce the weight. The individual electrodes are typically 8- or 12-m diameter carbon fibers that are insulated with glass or polyurethane. The apparatus was enclosed by polyurethane foam t o provide heat insulation. Parasites were then transferred to a droplet of glycerol on a microscope slide, encircled with fine ground glass, covered with a cover-slip and sealed with a polyurethane-based sealant. This range includes cushions filled with polyurethane or latex foam, gel air or combinations of these, covered in vinyl, sheepskin or other materials. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We do not feel, however, that the additional risk is such as to justify the replacement or modification of existing ceilings made of polyurethane boards. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It is in fighting fires involving polyurethane that the role of fire fighters has been changed radically and dramatically. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 If it were not for the polyurethane foam, many people would escape the fires. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Yet all the evidence is that polyurethane foam spontaneously combusts, particularly within 48 hours of manufacture. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Information is not available on deaths directly attributable to combustion of polyurethane foam-filled furniture. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 But it would not be practicable to end the purchase of furniture containing polyurethane foam. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 But they do not refer to the more than 100 people a year who die in their own homes from the same polyurethane foam. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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