What do these terms mean in gold td?

[Open] The trader newly buys or sells a certain number of standard contracts.

[Close] A process in which a trader hedges a previously held contract by trading in equal numbers and in opposite directions.

[Long position] The position held after buying the contract is called "long" for long position. Said that the future to pay the full amount of money, get gold in kind.

Short Positions Short positions held after selling a contract are called short positions. Show that in the future we must pay for gold in kind and receive funds.

[Buy Open]: Refers to the trading method that investors use for bullish future price trends. Buying and holding a bullish contract means that account funds are frozen when buying a contract.

[Sell Out]: Refers to the means of trading that investors are not optimistic about the future price trend, and sells the previously purchased bullish contract, and the investor's capital account is thawed.

[Sell Opening]: Refers to the trading method adopted by investors to bearish on future price trends and sells bearish contracts. Sell ​​open, account funds frozen.

[Buy]: It means that the investor will hold the sell contract no longer bearish on the future market and make up for the previous sell contract, with the original sell contract hedging to offset the withdrawal of the market, the account funds thawed.

[Position] Position is the process by which the trader holds the contract. Also known as "Open Position" refers to a contract that has not been closed after the opening of the position.

[Position] The number of open positions held by the trader.