delta是什么意思_delta怎么读_中英文释义(含例句用法)

a low triangular area of alluvial deposits where a river divides before entering a larger body of water;"the Mississippi River delta"
"the Nile delta"

an object shaped like an equilateral triangle

the 4th letter of the Greek alphabet

中英词源

delta 希腊字母表的第四个字母，三角洲

希腊字母表的第四个字母，三角洲因形如三角形而得名。

delta: delta: [16] Delta was the fourth letter of the Greek alphabet, corresponding to English d. Its capital form was written in the shape of a tall triangle, and already in the ancient world the word was being applied metaphorically to the triangular deposit of sand, mud, etc which forms at the mouth of rivers (the Greek historian Herodotus, for instance, used it with reference to the mouth of the Nile). Greek acquired the word itself from some Semitic language; it is related to dāleth, the name of the fourth letter of the Hebrew alphabet.
delta (n.): c. 1200, Greek letter shaped like a triangle, equivalent to our "D," the name from Phoenician daleth "tent door." Herodotus used it of the mouth of the Nile, and it was so used in English from 1550s; applied to other river mouths from 1790.

词态变化

复数 deltas;

权威造句

1. The less stable compounds were converted into a compound called Delta-A THC.: 不太稳定的化合物被转换成了一种叫做Delta-ATHC的化合物。

2. A Delta II rocket was launched from Cape Canaveral early this morning.: 今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。

3. Delta is the fourth letter of the Greek alphabet.: δ是希腊字母中的第四个字母.

4. The Nile divides at its mouth and forms a delta.: 尼罗河在河口分岔,形成了一个三角洲.

5. The singularities and inverse kinematic solution of the DELTA robot are discussed.: 讨论了DELTA机构的奇异形位和运动学逆解等.

近反义词

delta connection 三角形接线,△接法,...

tidal delta 潮汐三角洲

Delta metal 合金,耐蚀高强黄铜...

undersea delta 水下三角洲

delta network 三角形电路

delta rays 射线

cone delta 锥状三角洲,冲积锥...

delta impulse 三角形脉冲

delta matching 匹配转接

delta voltage 三角连接法线电压,三...

arcuate delta 弓形三角洲,弧形三角...

delta deposit 三角洲沉积

fossil delta 古三角洲

bay delta 海湾三角洲,湾头三角...

delta iron 铁

elevated delta 上升三角洲

fan delta 扇形三角洲,扇状三角...

delta wave δ波

wave delta 越浪堆积,冲溢三角洲...

delta rhythm δ节律

相似短语

delta delta connection 双三角形接法

arcuate delta 弓形三角洲，弧形三角洲

elevated delta 上升三角洲

delta circuit 电路

delta connection 三角形接法，三角形接线

delta field 三角形磁场

Delta metal 耐蚀高强黄铜

the Changjiang delta 长江三角洲

option delta 选择权变化率

storm delta 越浪堆积，冲溢三角洲

单词分析

暂无,等待补充.

记忆方法