Tài nguyên được gắn thẻ với: Field Surveys
1 đề mục được tìm thấy (Hiển thị 1 - 1)
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01-01-1990 This booklet aims to give insight into the subject matter so that you will be able to apply the methods described when carrying out small-scale measures. These measures include: staking out and digging a canal, staking out and construction a terrace, and levelling a field. Small-scale measures...