front shear line

基本解釋

The major systems come from the shear line of low-layer, the low trough of upper air and the ground stationary front.
主要影響系統(tǒng)來自低層切變線、高空低槽和地面靜止鋒；
The frontogenesis tilts the wet isentropic surface and produces significant positive vertical vorticity change in front of the frontal zone, which results in the fast development of shear line.
鋒生使得濕等熵面傾斜，在鋒區(qū)前側(cè)產(chǎn)生顯著的正垂直渦度變化，切變線得到快速發(fā)展。
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The liquefaction front, originating from the envelope of initial effective stress points, gradually approaches the failure line as the cyclic mobility proceeds as a function of plastic shear work.
液化面作為累積剪切功的函數(shù)，從初始應(yīng)力點(diǎn)的包絡(luò)線開始，隨著循環(huán)活動(dòng)性的進(jìn)行，逐漸接近破壞線。