求翻译：本机使用生产材料为覆膜砂，通过高压气流瞬时将砂射入型腔，模具加热（电或煤气）至180-240摄氏度固化成型，可制作砂型、壳芯，一个成品的成型周期为90-180秒（因砂型大小而定）。产品表面光滑，强度高，成型后即可使用，大大缩短制芯时间及工艺流程，生产效率高。（注：使用壳芯机制作壳芯，其模架可翻转180度，将型腔内多余未固化的砂倒出，大大降低砂芯重量及生产成本。）是什么意思？

Local production of materials using coated sand, the sand through the transient high pressure air injection cavity mold heating (electric or gas) to 180-240 ° C curing, can produce sand, shell core, a product of the molding cycle of 90 -180 seconds (due to sand size). Product surface is smooth, high

Use this machine for production of materials through high-pressure air currents, sand coated instantaneous will sand shot into the cavity, mold heating (electric or gas) to 180 - 240 degrees Celsius curing molding sand, shell, and could be produced, and a finished the molding cycle to 90 - 180 secon

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The machine used in the production are made of coated sand, the sand into the cavity by high pressure gas instantaneous, die heating (electric or gas) to 180-240 deg c cure molding, sand, shell core can be made, a production of the cycle time is 90-180 seconds (due to sand size may be). Smooth surfa

The machine used in the production are made of coated sand, the sand into the cavity by high pressure gas instantaneous, die heating (electric or gas) to 180-240 deg c cure molding, sand, shell core can be made, a production of the cycle time is 90-180 seconds (due to sand size may be). Smooth surfa