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看守的任务
oligoelemento
trace element 名词
element [ ˈɛləmənt, ˈɛlɪm(ə)nt] 名词
1.1. element (component part):
1.2. element (small amount):
1.3. element (distinct group of people):
1.4. element <elements, pl > (rudiments):
2.1. element :
2.2. element (earth, air, fire, water):
3. element <elements, pl > (weather) liter:
4. element (preferred environment):
estar en su (or mi etc.) elemento
5. element (of kettle, heater):
elemento m CSur
6. element <elements, pl > 宗教:
I. trace1 [ treɪs, treɪs] 名词
1.1. trace C or U (indication):
1.2. trace C (small amount):
2.1. trace C 计算机:
2.2. trace C (drawn by instrument):
3. trace (path, track):
trace
trace
II. trace1 [ treɪs, treɪs] 动词 trans
1.1. trace (chart):
1.2. trace (find):
trace criminal/witness/missing person
trace criminal/witness/missing person
ubicar LatAm
1.3. trace (follow):
1.4. trace (find origin of):
2.1. trace (on tracing paper):
2.2. trace (draw):
trace line/outline
trace2 [ treɪs, treɪs] 名词 (harness strap)
trace element 名词
element [ˈelɪmənt] 名词
1. element a. , 数学:
2. element (factor):
3. element 电气:
4. element pl (rudiments):
rudimentos m 复数
5. element pl 气象:
trace1 [treɪs] 名词
trace for horse:
I. trace2 [treɪs] 名词
1. trace (sign):
2. trace (slight amount):
II. trace2 [treɪs] 动词 trans
1. trace (locate):
2. trace (draw outline of):
trace with tracing paper
trace element 名词
element [ˈel·ə·mənt] 名词
1. element a. , math:
2. element (factor):
3. element 电气:
4. element:
rudimentos m 复数
5. element 气象:
trace1 [treɪs] 名词
trace for horse:
I. trace2 [treɪs] 名词
1. trace (sign):
2. trace (slight amount):
II. trace2 [treɪs] 动词 trans
1. trace (locate):
2. trace (draw outline of):
trace with tracing paper
Present
Itrace
youtrace
he/she/ittraces
wetrace
youtrace
theytrace
Past
Itraced
youtraced
he/she/ittraced
wetraced
youtraced
theytraced
Present Perfect
Ihavetraced
youhavetraced
he/she/ithastraced
wehavetraced
youhavetraced
theyhavetraced
Past Perfect
Ihadtraced
youhadtraced
he/she/ithadtraced
wehadtraced
youhadtraced
theyhadtraced
PONS OpenDict

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单语范例(未经PONS编辑处理)
Zinc is an essential trace element, necessary for plants, animals, and microorganisms.
en.wikipedia.org
It is the workhouse of the laboratory and is used for trace element analysis via accelerator mass spectroscopy.
en.wikipedia.org
There are similarities in trace element concentrations between primitive achondrites and chondrites.
en.wikipedia.org
It is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores.
en.wikipedia.org
Later, tests show that silicon is that substance; in humans it is normally just a trace element.
en.wikipedia.org