1. lead weight: n. 铅锤
lead 铅，铅笔芯，领导
iron 铁, 熨斗，坚强的 hammer 铁锤
steel 钢，兵器，坚硬的
2. elliptical: adj. =elliptic; noun. =elliptical galaxy
1. pertaining to or having the form of an ellipse;
ellipse: n. 椭圆
2. pertaining to or marked by grammatical ellipsis;
ellipsis: n. 省略号（=ellipses）
e.g. to conerse in elliptical sentences.
3. spiral:
螺旋式 n/v/adj
e.g. The country seems to be locked into a downward spiral.(国家螺旋式下降)
4. impulse: noun/adj
noun.
1. sudden, involuntary inclination prompting to action:
2. a psychic drive or instinctual urge.
3. an impelling action or force, driving onward or inducing motion. 冲量，推动力
4. [Electricity.] a single, usually sudden, flow of current in one direction.
adj:
marked by or acting on impulse
eg. an impulse buyer
pulse: v/n 脉冲，跳动
palse：noun. 脉冲
pause: verb./noun. 暂停，停顿
5. refute:verb 驳斥
1. to prove to be false or erroneous, as an opinion or charge
2. to prove (a person) to be in error
synonyms: disprove, rebut, confute
e.g. Silence is one of the hardest arguments to refute.(沉默是最难反驳的论点之一)
6. Jupiter :noun 木星
Mercury 水星
Venus 金星
Mars 火星
Saturn 土星
7. crest: noun/verb
noun:
1. the highest part of a hill or mountain range; summit 顶峰
2. the highest point or level; climax; culmination.
3. the ridge of the neck of a horse, dog, etc.
4. a helmet.
e.g. Never attempt to overtake on the crest of a Hill.
verb:
1. to furnish with a crest.
2. to reach the crest or summit of (a hill, mountain, etc.).
8. infrared 红外 n/adj
e.g. The other device was trying to read file data from the infrared port.
ultraviolet: 紫外
9. postulate:verb/noun
verb:
1. to ask, demand, or claim.
2. to assume without proof, or as self-evident; take for granted
e.g. postulate the existence of matter(假设物质的存在)
noun:
1. a fundamental principle.基本原理
2. something taken as self-evident or assumed without proof as a basis for reasoning. 假设
10.coordinate
noun:
1. [Mathematics]. any of the magnitudes that serve to define the position of a point, line, or the like, by reference to a fixed figure, system of lines, etc. 坐标
2. a person or thing of equal rank or importance; an equal. 配套
verb:
1. to place or class in the same order, rank, division, etc. 协调
2. to place or arrange in proper order or position.
adj:
1. of the same order or degree; equal in rank or importance.
2. [Mathematics].using or pertaining to systems of coordinates.
e.g. Coordinate among different departments to ensure the company system implementation.
11. validity:noun
the state or quality of being valid: 合法性
verb：valid
12.patch:noun/verb
noun:
1. a small piece of material used to mend a tear or break, to cover a hole, or to strengthen a weak place:
e.g. patches at the elbows of a sports jacket. 补丁
2. a piece of material used to cover or protect a wound, an injured part
e.g. a patch over the eye.眼罩
3. a small piece, scrap, or area of anything:
4. a period of time characterized by some quality:
e.g. he was going through a rough patch.
verb:
1. to mend, cover, or strengthen with or as if with a patch or patches.
2. to make by joining patches or pieces together:
3. to settle or smooth over (a quarrel, difference, etc.) (often followed by up):
13.emit verb
1. to give forth or release (a sound):释放
e.g. He emitted one shrill cry and then was silent.
2. to issue formally for circulation, as paper money.
3. to utter or voice, as opinions.
omit: verb 忽略，遗漏
14.snapshot:noun/verb
noun:
1. Hunting. a quick shot taken without deliberate aim.
2. Informal. a brief appraisal, summary, or profile.简介
verb：
to photograph informally and quickly.快照
snapshoot: verb , to take a snapshot of (a subject).
15.cone: noun/verb
1. anything shaped like a cone:锥形物
2. one of a series of cone-shaped markers placed along a road, as around an area of highway construction, especially to exclude or divert motor vehicles.
3. ice-cream cone
e.g. Force cone friction to be used for this rigid body.
16.cease
verb:
1. to stop; discontinue:停止
e.g. Not all medieval beliefs have ceased to exist
2. to come to an end:
3. Obsolete.to pass away; die out.
noun:
cessation: 停止，中断
17.warp:verb/noun
verb:
1. to bend or twist out of shape, especially from a straight or flat form, as timbers or flooring.变形，弯曲
2. to distort or cause to distort from the truth, fact, true meaning, etc.; bias; falsify:
3. to be or become biased; hold or change an opinion due to prejudice, external influence, or the like.
noun：
1. a bend, twist, or variation from a straight or flat form in something, as in wood that has dried unevenly.
2. a mental twist, bias, or quirk, or a biased or twisted attitude or judgment.
synonyms:distort
18.geodetic: adj
=geodesic 用于测量的
noun : geodesy测地学
19.elongate:verb/adj
to draw out to greater length; lengthen; extend.拉长
adj:=elongated : extended, lengthened
20.reconciliation:noun
1. the process of making consistent or compatible.和解
2. the state of being reconciled, as when someone becomes resigned to something not desired.
verb: reconcile