不适宜的材料很容易在其他方式提供。
LDPE树脂的拉伸强度低，耐压差，刚性差，成型加工时尺寸稳定性差，并且连接困难，不适宜作为给水压力管的材料。
Tensile strength of LDPE resin low voltage differential, rigid poor dimensional stability when processing poor, and connection difficulties, not suitable as a water supply pressure tube material.
高液限粘土不适宜作为路基的填筑材料。
Cohesive soil with high liquid limit is not suitable to be used as fill material for road beds.
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