为保护区域内现存完好的沉船不被船蛆侵害，研究者建议用聚丙烯幕帘覆盖沉船，或者用海底淤泥和沙袋掩盖沉船。
To defend the region's well-preserved wrecks from shipworms, researchers have suggested draping submerged vessels in polypropylene covers or covering ships with seabed sediments and sandbags.
为保护区域内现存完好的沉船不被船蛆侵害，研究者建议用聚丙烯幕帘覆盖沉船，或者用海底淤泥和沙袋掩盖沉船。
To defend the region's well-preserved wrecks from shipworms, researches have suggested draping submerged vessels in polypropylene covers or covering ships with seabed sediments and sandbags.
本文对砂金矿床储量计算现存的某些问题提出了自己的看法，指出了由于不正确的计算方法给采金船生产带来的某些危害。
The calculation of gold-placer reserves shows that incorrect calculation methods have brought a great many of disadvantages in the gold production with dredgers.
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