In the past he has pooh-poohed suggestions that he might succeed Isaacs.过去他对自己会接替艾萨克斯之说嗤之以鼻。They pooh - poohed our scheme for raising money.他们对我们的筹款方案嗤之以鼻.He just listened for a while and pooh - poohed her idea.他只听了一会儿就对...
The United States tried to dispose of its grain surpluses.美国努力把过剩粮食处理掉。The chief problem was to find how to prevent surpluses from depressing domestic prices.首要问题是设法防止由于产品过剩而使国内价格下降.Countries enjoying surpluses will be u...
本文报道了用菱锌矿作原料,制备硫酸锌的工艺条件.The technological conditions of the preparation of zinc sulfate with smithsonite as raw materials was reported.研究了以菱锌矿为原料通过酸浸、除杂、中和、沉淀、干燥制备碱式碳酸锌和活性氧化锌的生产工艺.A process for the production of basic zi...