hardpan

常見例句

Prices have reached(the) hardpan.
物價已經(jīng)降到了最低點。
Prices have reached (the) hardpan.
物價已經(jīng)降到了最低點。
When small lakes dry up, they leave a salt crust or hardpan.
當小的湖泊干枯時候，它們留下鹽殼或沙礫層。
Its uninviting surface is marked by mesas and buttes, and barren stretches of parched desert hardpan.
不起眼的表面有著臺地與小尖山以及貧脊乾燥的沙質(zhì)地基。
The various kinds of data-financial affair, human affairs and various files in work system are conserved in computer hardpan.
辦公系統(tǒng)中各種重要數(shù)據(jù)如財務(wù)帳目、人事資料、各種檔案等將保存在計算機的硬盤中。
The most important problems research had to solve were: (1). build-up and maintenance of soil fertility; (2). avoid soil hardpan and (3). control soil erosion.
研究要解決的最重要問題是：（1）積累和維持土壤肥力；（2）避免土壤硬磐；（3）控制土壤侵蝕。