沉降的英文：
sedimentation
subside

参考例句：

Compaction of sediments in a basin which is sinking down will remain a permanent process over geological times.
在地质历史时期，正在沉降的沉积盆地的压实作用是一个永久性的作用过程

The total dose increases continuously from the time of arrival of the fallout toward the limiting(infinite time)value
总剂量从沉降物抵达时开始就不断上升直到极限值(无限时间)。

X-ray examination of cervical spine, NAD; full blood count, completely normal: ESR 2mm/h; urine, no glycosuria.
颈椎X线检查无明显疾患;全血细胞计数完全正常红细胞沉降率为一小时2毫米;无糖尿。

depositing dock
沉降船坞

depositing floating dock
沉降式浮船坞

The magnitude of the hazard from fallout will then be far less than if the explosion was a surface burst.
这时沉降的危险性就比表面爆炸条件下小得多。

The supply of sediment is insufficient to offset the rate of subsidence
沉积物的补给不足以抵偿沉降的速率。

The test results show that the application of the method has effectively reduced settlement.
测试结果表明，该工法能有效减小沉降。

It is in the early stages following the explosion that protection from fallout is most important.
在爆炸后的早期内，对沉降物的防御最为重要。

They sediment toward the bottom of the centrifuge tube at a velocity
它们以某一速度向管底方向沉降。

sedimentation是什么意思：
n. 沉淀,沉降

not made opaque or cloudy by sediment.
没有被沉淀物弄得不透明或者混浊。

The sediments are characteristically very fossiliferous
沉积物的特征是含化石很多。

Measure sediment temperature at intervals of 5 m by inserting the soil thermometer into the sediment.
沿样条每隔5米用土壤温度计量度土壤温度。

Observe microorganism in the water and in the sediment by a microscope.
用显微镜观察水样本和基质样本中的微生物。

The sediments are detrital and largely of greywacke facies
沉积岩为碎屑质，大部分属于杂质砂岩相。

subside是什么意思：
v. 减弱；平息；减退，消退；下陷；沉淀；坐下

He subsided into the seat.
他瘫倒在座位上。

He subsided into a pensive state.
他陷入了沉思。

Many countries subsidize exports.
好多国家都有出口补贴。

The clamor did not subside so simply.
喧闹没有那么容易地消散。

The government has refused to subsidize the car industry.
政府拒绝对汽车业进行补贴。