The paper introduces the product of class H polyester - imide solventless impregnating varnish.本文介绍一种不饱和聚酯亚胺类型的H级无溶剂浸渍树脂.Materials for Rtating and Static Rings : Impregnating resin ( metal ) graphite, Carborundum , hard ...
The paper introduces the product of class H polyester - imide solventless impregnating varnish.本文介绍一种不饱和聚酯亚胺类型的H级无溶剂浸渍树脂.Shortly after impregnating her the boy runs away.在让她怀上孩子不久后,这个男孩子跑了.Materials for Rtating and Stati...
the centripetal effects of a homogeneous population同类人种倾向集中的作用Educators try to put pupils of similar abilities into classes because they believe that this homogeneous grouping is advisable.教育学家设法将学生按相近的能力分班,因为他们认为这种按同等水平...
The men had to slog up a steep muddy incline.人们只得在陡峭而泥泞的斜坡上艰难地行进。The men had to slog up a steep muddy incline...人们只得在陡峭而泥泞的斜坡上艰难地行进。Marking the exam papers was quite a slog.评阅试卷是很辛苦的工作.But there must be no talk of final ...
“你什么意思啊？”我问，替利迪感到愤愤不平。"What do you mean?" I asked, offended on Liddie's behalf.“我想我听到电话铃在响。”——“好的，我明白你的意思了。”"I think I hear the telephone ringing."—"Okay, I can take a hint."别误会我的意思，这个工作很有意思，可惜不是长期性的。Don't get ...
甲酸异癸酯,较原甲酸异癸酯对水解的破坏作用要安定得多.The isodecyl formate is considerably more stable to hydrolytic attack than the isodecyl otrhoformate.由异癸醇和三氯化磷反应制得亚磷酸三异癸酯.Triisodecyl phosphite ester is synthesized with isodecyl alcohol and PC...