Investigated were the surface modes propagating along a hollow dielectric slab waveguide with a left handed material (LHM) substrate or cover, respectively.
详细研究了衬底或者覆盖层是左手材料两种情况下，空心平板波导中的表面模。
We will cover the new areas with a concrete slab that is separated from the old tower, leaving thin fissures through which natural light will slip inside.
用混凝土板遮住新区域，混凝土板与旧塔相分隔，留下狭长的裂缝，以便光线由此穿透进室内。
Mural face material: with cover with paint, wallpaper (spray style), wainscot and thick qualitative slab.
壁面材料：用涂饰、壁纸(喷涂风格)、壁板和粗质平板等。
The invention relates to a slab laser cladding compound alloy layer heater which comprises a furnace body, a rolling screen orbit and a thermal insulation rolling screen cover plate.
平板激光熔覆复合合金层面加热器，包括炉体、卷帘轨道、保温卷帘盖板；
The slab came back to be flat without opposite curling at the post stage of stacking cooling with heat preservation cover, and the residual stresses decreased.
堆冷过程中加盖保温罩能使铸坯在冷却后期恢复平直而不发生反向弯曲，并且铸坯内残余应力也变小了。
The slab came back to be flat without opposite curling at the post stage of stacking cooling with heat preservation cover, and the residual stresses decreased.
堆冷过程中加盖保温罩能使铸坯在冷却后期恢复平直而不发生反向弯曲，并且铸坯内残余应力也变小了。
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