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  • ް۸һǮ

    2020-01-16 | 鿴ȫ

    ް иĿʹáг󣬶ް۸ѳΪǹעĽ㡣 ް۸ȡƷгֵƷԼȷ۸ɱͬ۸IJƷްްжصգգIJǷdzõIJϣް ͬƳɵްƷļ۸Ҳͬ ͬްް۸ҲÿƽһЩ죬г۸㣬ްÿƽ׵ļ۸ϲ100Ԫһ֮ϵļ۸ǻ 벻ϸ豸Խʡɱ߼۸ ͨ߿϶һ֪ι̵ͬˣ

  • ޱ°ЧЧ

    2020-01-13 | 鿴ȫ

         ޱ°뷽ĹøֳܳϵҪбҪҪ㹻עزŻҪ       ްӻ;ڻвжڵҪްܹܺõķȣΪоάȼҪ;ӻֵʽ޽ϡ        ޱźܺõ롢ͷãʮֵɫһЩְҵְͨҵҲ᳣ӰһЩ͵ʩжõֲƷ

  • ųעЩ?

    2020-01-08 | 鿴ȫ

           1.ڵĵߣͬҵ߲һЩҶijЩ豸ƽڣ߱ijһ׼ĿǰϱȽϳõı׼ŷCEULȡ     2.صĵѹͬвͬĹҵѹѹͬ豸۲ͬҪǵѹ豸     3.Ʊ׼гŷгԼƱ׼Ҫصע⡣

  • ѡޱ°ЩҪ

    2020-01-06 | 鿴ȫ

    ޱ°ѡҪѡôȽ϶ıǽ£ճ㡢²㡢Ĩ㡢㼰ɣ͹ư塢ϸάϳΪʱֻװҪϣҪѡްʱ̳ҪѡЩûɫIJƷۺѷֱĻҲܹȥһ£ҪЩȥȽܶȱȽСIJƷ ޵ĸЧҲǡáҪǽı¸޽ǽź͵ݾԷֹֺϸIJƷûôӲˡ   1չãȼްΪϣۼӹɵ޻ά

  • ްʹãϸرע

    2020-01-03 | 鿴ȫ

       ްɸڼӹ޻άƳɡ ᣬϵСԺͲȼԵص㡣      ʹްע꣬ڼ¶ȵ£֬ò֬޸ȣҲǷġ  ¶ȳһ¶ʱھԵмⲿԵ㡣 ֱƽ豸޲ƷԵ ¶ȳ200°CʱӦȲΡ  豸ҪԵԵӦڷʴԽӦͿ㡣  ްƷⱣµ£ͷͷܷ⡣ ҪԵ90Ȳһ߶ʱֹԵ

  • ѡ壬2裬һ

    2020-01-01 | 鿴ȫ

      õIJʸְĽᾧdzϸ,⻬ϸ,ûκ,ɫ⻬͸.ʹ궼ɫƤ.ʵIJʸְɫ޹,ָдֲ,ϸСʿ,ûй. ѡ񾻻ʸְʱҪһ²Ʒ,ӷͿжϳʸְĺû.õIJʸְ巢,Ƚ.ʵķȽ.ҪһҵĻǷɾ,һҪѡгڱõijҽй. ѡʱҪǵҵʵڱ 

  • ʸְ

    2019-12-30 | 鿴ȫ

    ʸְһɫͿƤоĶþ۱ϩ۰ĭȼϣֺ¶һ600棬ƤͻᱻڲĭȼϣӻȼղﶾԴ 1.ʸְṹԷգ۰ĭ۱ϩĭȸ߷ӼоȼʱỤ̃ʹڶʱڳŨ̲۴Ի˾ȴѡ 2.ʸڳǷȼղϣտǿȻѸ½ǴȽʱʸֹܸ÷ŤΣ½ 3.ʸཨǿȸߡᡢ췽㣬ģһϴ󡣷ʱͨ

  • ͬ͸ְۼ㹫ʽ

    2019-12-27 | 鿴ȫ

      1 ְ㹫ʽ(λmm)(λmm)(λmm)7.85(ܶ)1000000000=(λ)ְбۼ,ë߻ǹء 2ÿ=0.00786߿  1 ְ㹫ʽ(λmm)×(λmm)×(λmm)×7.85(ܶ)÷1000000000=(λ)ְбۼ,ë߻ǹء  2ÿ=0.00786×߿×߿  3

  • ص㼰;

    2019-12-25 | 鿴ȫ

     ˵һ־пİģ౻ڶԻҪϸߵôصʲôأ ֵͺ͸֡ˮѹΪģӦҽԺʵҡȶԻҪߵ򡣸ͣɲͿ塢ֵȲΪĵĸϰ壬ӦڵӡҩʳƷ캽ա켰еȶڻҪ̵Ľྻ ص 1غСʽܡ 2ȼ硢ùɲжܻ 3ǽмߡܣʵҽԺڻʱۡȻһ塣 4ӽʹǽ񱡿ѡ 5

  • Ӱ춳

    2019-12-17 | 鿴ȫ

        䶳ⷿõIJϣ¶ʪȻҪߣѡҲע¶ǿȡ    Ӱأܶȡȡԡ     ܶȴСӰ춳ԣйزŲͨ۰Ᵽ°ķܶ35-43KGΪ淶     ѡ¶ѡ̶ij񣬸ߡͨѡ10׺İ飬¿⼰סͨѡ12׻15׺İ飬չʱҪעȣþϩ;۱ϩ۰оΪϣ֮о۰߹ƣºö

  • ǿȸߵްϽ

    2019-12-03 | 鿴ȫ

    ǿްеϵͣЧã͸ܼѣȼܼߣϻ̶ǿͺ׿ԽƣӦ½Ľý̼ǽ屣¹̡ ްı¸ȣepsĭõķܣdzʺڽ͹ҵ豸ܵҤ¯ı¸ȡ¸ȣֹʧ棬Ӧ ˮ棬ˮǿˮ͸ֵСЧؼٽǽ巢ù¾ȷ棬޵ϵС¾ܺá棬һֶά״ϣͨʱά񶯺໥Ħܶá

  • ʸ־ע

    2019-11-28 | 鿴ȫ

      (1)ɫƷϸĽΪ˳׷ʹðȫDZѡһֺõķɫְ壬ɫ壬IJɫְ弸Dzȼġ 2ʸֲƷʹùУԶԴѡõIJʸְͨĭʸְ壬òҪڲʸְ巿óԶԴȻ֡ (3)ڲɫְƷвҪʹõͷǷԱ©Ļ֣ߺ͵òҪɫְĺġ 4ʸְڱģڷʱʱã԰װֱʹԱѸԱ 5һ˵͸ε̻

  • ʸְ嶬ķ

    2019-11-25 | 鿴ȫ

      ˣʸְ¸ȣɫԽԽδԽԽ㡣 ʸְDzĸֲģرĹռӹɵģҪзdzõı ʸְҼȻʯΪҪԭϣʸְ徭ڳˣճ̻ӹƳɵġʸְƷڹҵ豸ľȡȡ ĿǰʸָϰıûãͲ˾Ҫµģ½ͣݽݼ̻ʱӳʩʱĥʱҲӦӳⷢݽδ̻ʹĥ

  • ްԼӦ÷Χ

    2019-11-22 | 鿴ȫ

          ް忹ͻͬʱðı¡ȡԣӦõķΧ㡣ް峤ɴ12ϣϷҪ     ްڸֽṹǽϵȡ     ްƷص㣺     1оάȼҪ     2ϵλ≤0.044w/m.k ϵλ≤0.031/m.k     3Ϊ1015ꣻ &nbs

  • ްʹҪǵķ

    2019-11-21 | 鿴ȫ

        ްƳɣᣬϵСԺͲȼԵص㡣      ްʹʱעꡣ  ¶ȳһ¶ʱھԵмⲿԵ㡣 豸ҪԵڷʴҪԵ90Ȳһ߶ʱֹԵʱ»    ްעֻǴԣӦ˵      ȽϹڱ¸г״ÿɰɱͣÿֺϸȰϱ׼ҪĵͳɱԼϵĵͳɱ۸ ҪӦó

  • ʸְˮ©ˮʩ

    2019-11-18 | 鿴ȫ

    ʸְ©ˮ⣬Dzϵ⣬Ϊ˿ӵԭɡҪ©ˮ¼㡣 1ʩУ˿ءᣬ˿ƫбȣʹԹ˿𽺵ƬΡγɰ棬 ©ˮͨ޾ۻٳɶ࣬γɶ©ˮ⣬Թ˿λòʸְµֱγɿ׶Ҳ©ˮҪԭ֮һ 2ʸְӴ©ˮʸְ߲ͻˮû߲ʱγɴ©ˮҲ׷©ˮ㣬һγɲ׼ޣ 档 3͸ֽṹʩУݼ©ˮҲһֽΪ꼾ˮʱ

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181, ǰʾ16 -- 32, 12ҳ

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