Besides being slow (top speed 0.2kph) and at risk of sand traps, wheeled rovers like Spirit and Opportunity have other limitations.
除了行驶速度慢（最高时速200米）和有陷入沙中的危险，勇气号与机遇号有其他缺陷。
Her hosts held a festive celebration, then showed her the dam, an eight-foot-high sand-and-concrete structure that traps and filters water so that it's available and drinkable year-round.
接待她的主人举行了节日庆典，然后，带她看了水坝——八英尺高的沙和混凝土结构，圈住并过滤能够全年供应的饮用水。
The existence of vast area of tight sand rock, low permeability of sand rock and plenteous gas supply are all favorable conditions for the formation of deep basin gas traps.
大面积致密砂岩的存在、砂岩的低渗透性以及充足的天然气供应都是形成深盆气藏的有利条件。
In the West Sichuan Depression with tight sand, the formation mechanism of traps and gas reservoir is quite complicated, resulted from the basin's complex evolution.
在川西坳陷这个致密砂岩领域，圈闭和气藏的形成机理相当复杂，其根本原因在于盆地有着相当复杂的形成与演化史。
Islands can work as effective cover for your ships, while sand bars and reefs can be used as traps against an enemy fleet.
离岛可以为您的船舶有效覆盖，而沙洲和珊瑚礁可以作为陷阱，用来对付敌人的舰队。
It is suggested that there are two kinds of potential subtle traps:intrachannel tidal sand ridge structural-stratigraphic traps and channel lateral-sealing structural-stratigraphic traps.
指出水道内潮流砂脊构造-岩性圈闭和水道侧向遮挡构造-岩性圈闭两种有利的潮流砂脊隐蔽圈闭。
It is suggested that there are two kinds of potential subtle traps:intrachannel tidal sand ridge structural-stratigraphic traps and channel lateral-sealing structural-stratigraphic traps.
指出水道内潮流砂脊构造-岩性圈闭和水道侧向遮挡构造-岩性圈闭两种有利的潮流砂脊隐蔽圈闭。
应用推荐