这不是允许的。
The errors may be not allowable if theory of elasticity is employed in the problems concerning these materials.
对于涉及这种材料的问题,如果延用经典弹性理论的解答,有可能产生较大的误差。
Materials shall be unloaded from vehicle slowly. Fierce stepping on gas is not allowable to prevent dust from ash ejector of exhaust pipe.
④车辆卸料时时必须缓慢进行,禁止猛加油门而造成排气管冲灰产生扬尘。
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