Use a metal mold and a release agent such as talcum powder.

需要使用金属模具和脱模剂例如滑石粉末。

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The resultant tool has a longer life and may be used without a release agent.

所产生的工具寿命更长，并且在不用脱模剂的情况下仍能使用。

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Rock textures can be achieved with stamps or rubber skins molded from real rock and hit with a release agent before use to ensure a clean parting of ways between concrete and imprinting tool.

岩石纹理才能实现真正的邮票或岩石模压橡胶皮，用脱模剂打击使用前，以确保混凝土之间的印迹分手清洁工具的方法。

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They're going to release a viral agent that will kill half of this country.

他们会释放出一种病毒，让这个国家一半的人丧命。

There is 实战 - SpeakingMax英语口语达人

Security experts feared someone might be able to release a biological agent into the air stream that flows into the building, sources said.

CNN: U.S. Capitol getting security overhaul

The 26-year-old Frenchman is a free agent following his release from Premier League club Stoke City has been training with the Bluebirds.

BBC: Pericard joins Cardiff on trial

"The uncertainty arises from the fact that we have not yet received a formal release request from Trent's agent, that discussions on compensation have not yet even started and that changes of mind can sometimes occur in these situations, " he said.

BBC: Wigan prepared to let Barrett go