这是通过中枢神经系统的调节作用实现的。This works through the mediation of the central nervous system.他正在服用一种危险的药物:这种药物能很快影响到中枢神经系统。He's taking a dangerous drug: it acts very fast on the central nervous system.语言中枢位于左半脑。The major centr...
梯形是具有两平行边的四边形.A trapezoid is a quadrilateral with two parallel sides.双梯形的试样将产生切变脱胶现象.A double trapezoidal specimen will generate shear debonding.阀杆上的短梯形螺纹适用于快速启闭操作.Stub acme thread on stem provides rapid open - close ope...