求翻译：由于抗剪强度是抗拉强度的4到6倍，因此如果能够采取某种外力施加方式，使得冰层的脆裂完全属于或尽可能地接近拉裂，那么将极大地减小外加力量和功耗。在机械刮削冰层过程中，可以通过改变压力的施加角度来使得冰层内部出现拉应力并使之达到抗拉强度，从而减小外力和功耗。如图3所示。是什么意思？

Since the tensile shear strength was 4 to 6 times , so if some external force is applied to take the way , so that the ice embrittlement entirely or as close as possible crack , it will greatly reduce the applied power and power

The shear strength, tensile strength of 4 to 6 times, so if you are able to take an external force applied to the ice of the brittle entirely within or close as possible to crack down, it will greatly decrease plus strength and power. The mechanical scraping ice in the process, you can change the pr

Because the shearing strength is the tensile strength 4 to 6 times, if therefore can adopt some external force infliction way, enables the ice layer the embrittlement to belong to or as far as possible the close tension fracture completely, then enormously will reduce the sur- strength and the power

Due to the shear strength is 4 to 6 times times the tensile strength, so if we can take some force, makes the ice rattle entirely within or as close to the crack, it will greatly reduce the external forces and power consumption. In the course of machinery scraping ice and imposed pressure angle can

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