When we are directed to something the team think might be suitable we then go and physically scope it out, measuring up and drilling along the edges to check the ice thickness.
当行动小组指出一处他们认为可能适合降落的地区后，我们就去那里实地察看和丈量，同时沿着其周边冰面钻孔以测量冰层厚度。
There can be several check surfaces, and each can have a different thickness allowance.
可以有几个检查面，而且每一个可以具有不同厚度的留量。
Vendor shall check and confirm under his guarantee that such thickness provide the proper strength under the specified conditions.
卖方应加以检查确认以保证买方建议的厚度在指定条件下达到强度要求。
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