n. 圆筒
the cylindrical part or hollow shaft of any of various mechanisms
n. 盆,盆地
a broad tract of land in which the rock strata are tilted toward a common center
n. 盐水
water saturated with or containing large amounts of a salt
n. 钙
a silvery, moderately hard metallic element that constitutes approximately 3 percent of the earth’s crust
v. 使瀑布似的落下
to fall or cause to fall in or as if in a cascade
n. 氯化物
a binary compound of chlorine
n. 核心
the central or innermost part
n. 巡航,漫游
to travel about or journey over
adj. 地壳的
of or relating to a crust , especially that of the earth or the moon
adj. 水晶的,结晶性的
being, relating to, or composed of crystal or crystals
n. 舱面,甲板
a platform extending horizontally from one side of a ship to the other
n. 大洪水
a great flood
n. 圆屋顶,穹窿
a structure or other object resembling such a hemispherical roof or vault
【近】 head , noddle , pate , poll
adj. 穹顶状的
of or relating to a dome or looks like a dome
n. 回声
repetition of a sound by reflection of sound waves from a surface
【近】 repercussion , reverberation
v. 蒸发,消失
to convert or change into a vapor
【近】 boil away , vaporize , volatilize
【记】e出,vapor( n. 水蒸气,水汽)→出水汽→蒸发
n. 远征
a journey undertaken by a group of people with a definite objective
n. 消灭,根绝
to get rid of by destroying completely ; extirpate
【近】 annihilation , eradication , extinction , extinguishment
v. 变动而产生断层
to shift so as to produce a fault
n. 动物群
animals , especially the animals of a particular region or period, considered as a group
v. 规划,构想
to devise or invent
【近】 contrive , devise , fabricate , invent , make up
n. 砂砾
an unconsolidated mixture of rock fragments or pebbles
n. 石膏
a widespread colorless, white, or yellowish mineral
n. 假设
something taken to be true for the purpose of argument or investigation; an assumption
【近】 theory
【记】hypo在……下面,thesis( n. 论题,论文)→论题的背后→假设
adj. 无脊骨的,无脊椎的
lacking a backbone or spinal column ; not vertebrate
【记】vertebrate( n./adj. 脊椎动物/有脊椎的)
adj. 为陆地所包围的,陆封的
entirely or almost entirely surrounded by land
n. 层
a usually horizontal deposit or expanse; a stratum
adj. 海的
native to, inhabiting, or formed by the sea
【近】 maritime , oceanic , pelagic , thalassic
n. 矿物,无机物
a naturally occurring, homogeneous inorganic solid substance
n. 目的
something worked toward or striven for; a goal, a purpose
【近】 aim , goal , intent , intention , purpose
adj. 海洋学的,有关海洋学的
of or relating to a science that deals with the oceans
n. 软泥,淤泥
a layer of mudlike sediment on the floor of oceans and lakes, composed chiefly of remains of microscopic sea animals
n. 生物
an individual form of life , such as a plant, an animal, a bacterium, a protist, or a fungus
n. 小圆石,小鹅卵石
a small stone , especially one worn smooth by erosion
n. 特质,特性
a notable or distinctive feature or characteristic
【近】 character , characteristic , feature , property , trait
v. 穿透
to enter or force a way into; pierce
【近】 enter , perforate , pierce
v. 沉淀
to cause (a solid substance) to be separated from a solution
【近】 deposit
n. 盐性,盐度
the quality or state of being saline
n. 海上航道
a sea route
n. 沉淀物,沉积
solid fragments of inorganic or organic material that come from the weathering of rock
【近】 deposit , precipitate , precipitation
n. 淤泥
a sedimentary material consisting of very fine particles intermediate in size between sand and clay
n. 钠
a soft, light, extremely malleable metallic element that reacts explosively with water
adj. 溶解的
that can be dissolved , especially easily dissolved
n. 测探水深
a probe of the environment for scientific observation
adj. 壮观的
of the nature of a spectacle; impressive or sensational
n. 硫酸盐
a chemical compound containing the bivalent group SO 4
adj. 温和的,有节制的
moderate in degree or quality; restrained
adj. 容忍的,有耐力的
able to withstand or endure an adverse environmental condition
adj. 汹涌的
violently agitated or disturbed; tumultuous
【近】 violent
n. 船
a craft, especially one larger than a rowboat, designed to navigate on water
adj. 被风吹的
blown or dispersed by the wind