Golf: Golf is a game that may be played with as many players as desired. It is also a very quick game, limited to only 3 "shots" per "hole". Games may be played with 9 or 18 holes. A 9 hole game with 2 players can be played in 5 minutes or less.

The Play: The first player begins the first hole by throwing for 1's. The player may choose to throw one, two or all three darts for the hole. However many darts are thrown. The last dart thrown is the one that counts. For example, the player throws the first dart into the thin wedge of the 1 for a score of 3. Un-satisfied with this score, he throws the remaining two darts at the triple and misses the ones entirely. His score for is now 5 for the hole, he may not choose to count the first dart because he continued throwing. If he had been satisfied with the first dart, he may have kept the score of three and not thrown the remaining two darts.

The remaining players play through the first hole in order. When play returns to the first player, the second hole is played and 2 is the target number. The game continues as such until all 9 or 18 holes have been played.

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Besides, at low temperature manganese tungstate is the anti-ferromagnetic materials and English alias is manganese (II). Its physical properties are as follows: chemical formula: MnO4W, molecular weight: 302.78, density: 7.324g/ml, Solubility: insoluble, CAS registry number: 14177-46-9, MDL number: MFCD00014212. MnO4W is stable at room temperature and atmospheric pressure, but to avoid contact with the light, open flame and high temperature, so it should be sealed and stored in some place where is cool and dry. In addition, MnO4W have some irritation, a person's skin and eye contact product will cause inflammation and other symptoms, so during the operation should to wear some protective gear. And it has a certain degree pollution of water, we can not let undiluted or large number products to reach ground water, water course or sewage system. What’s more without government permission do not allow this material release into the surrounding environment.
Manganese tungstate synthesis method:
1. Dichloride manganese and sodium tungstate cause metathesis reaction to obtain manganese tungstate precipitate and then after washing to dried at 1000 ℃.
2. Heat the calculated amount of MnCO3 and WO3 to produce yellow-brown manganese tungstate.

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Golf: Golf is a game that may be played with as many players as desired. It is also a very quick game, limited to only 3 "shots" per "hole". Games may be played with 9 or 18 holes. A 9 hole game with 2 players can be played in 5 minutes or less.

The Object: Like real golf, the object is to complete each hole in as few shots as possible. The player with the lowest score at the end of 9 or 18 holes wins.

The Scoring: Players names are written across the top of the board in order. Order is usually determined by throwing one dart each for the bullseye with the closest playing first. This is a game that playing order makes no difference, all players have an equal number of throws to complete the game.

The agreed upon number of holes to play is written in order down the left side of the board (1 through 9 or 1 through 18). A running total is kept for each hole played and written next to the number of the hole in the column for that player.

The thin outer "doubles" ring counts as a hole in one. The thin inner "triples" ring counts as 2 strokes. The thin wedge between the bulls-eye and the triples ring counts as 3 strokes. The thick wedge between the doubles and triples ring counts as 4 strokes. Missing the number entirely counts a 5 strokes. 5 is the worst score you can score on any one hole.
 

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Lithium tungstate is a kind of BeSiO3 stone lattice which is colorless triangular crystal. its physical properties are shown below：the chemical formula: Li2O4W, molecular weight: 261.7196, density: 3.71g/ml, Solubility: soluble in water, but insoluble in ethanol. Its chemical properties are as follows: It can decompose in acid; On the other hand, heating it at temperature of 500 ~ 800 ℃, and then passed through H2 can restore to the tungsten bronze, and then heated to 600 ℃ generated WO2, the final product is W (β type) . Lithium tungstate is stable at room temperature and atmospheric pressure, but to avoid the light, open flame and heat, so it should be sealed and stored in where is cool and dry place. In addition, Li2O4W has acutely toxic, if human skin and eye contact it will cause inflammation and other symptoms, so when during at the operation should to take some protective gear. And Li2O4W has a certain degree pollution of water, the factories can not let undiluted or large number products to reach ground water, water course or sewage system, besides, without government permission do not allow material into the surrounding environment.
Lithium tungstate synthesis method: dissolution WO3 in Li (OH) or Li2CO3 solution to obtain Li2WO4.

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