The fascinations of the circus are endless.马戏表演非常吸引人.He held the children spellbound with magic tricks and other fascinations.他使那些孩子沉浸在魔术和其他魅力中.The fascinations of language are many as serious students of language quickl...
The heptane compound has a primary purpose as a plasticizer for doublebase propellant systems.化合物庚烷的主要用途是作为双基推进剂的增塑剂.However, it is difficult to produce multi branched i heptane and restrain its cracking.正庚烷异构化的难点在于高选择性地...