英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

optional    音标拼音: ['ɑpʃənəl] ['ɔpʃənəl]
a. 可选择的,随意的

可选择的,随意的

optional
可选择的

optional
任选 选项

optional
adj 1: possible but not necessary; left to personal choice [ant:
{obligatory}]

Optional \Op"tion*al\, a.
Involving an option; depending on the exercise of an option;
left to one's discretion or choice; allowed but not
compulsory; as, optional studies; it is optional with you to
go or stay. -- n. See {Elective}, n.
[1913 Webster]

If to the former the movement was not optional, it was
the same that the latter chose when it was optional.
--Palfrey.
[1913 Webster]

Original writs are either optional or peremptory.
--Blackstone.
[1913 Webster]

38 Moby Thesaurus words for "optional":
alternative, arbitrary, autonomous, discretional, discretionary,
disjunctive, elective, free, free will, gratuitous, independent,
nonmandatory, offered, proffered, self-acting, self-active,
self-determined, self-determining, spontaneous, unasked,
unbesought, unbidden, uncalled-for, uncoerced, uncompelled,
unforced, uninfluenced, uninvited, unpressured, unprompted,
unrequested, unrequired, unsolicited, unsought, volitional,
voluntary, volunteer, willful


请选择你想看的字典辞典：
单词字典翻译
optional查看　optional　在百度字典中的解释百度英翻中〔查看〕
optional查看　optional　在Google字典中的解释Google英翻中〔查看〕
optional查看　optional　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Safety Headline Goes Here - Zoro. com
    Safety Headline Goes Here Optional subheader goes here Personal Protective Equipment (PPE) Gloves Hand Protection Eye Protection
  • STCL-153P WEB INSTALL (0302021) - Zoro. com
    Install with confidence Use included diagrams or visit our website for step-by-step instructions
  • Cabinet Hinges | Zoro
    Cabinet hinges are an essential part of any cabinet or furniture They provide the structural support needed to keep doors and drawers in place while also allowing them to open and close smoothly Cabinet hinges come in a variety of styles, sizes, and materials to meet the needs of different applications Types of Cabinet Hinges Heavy duty cabinet hinges are designed for heavy-duty
  • Please read and save these instructions - Zoro
    As an alternative, install unit on optional vibro-isolator pads Tanks bolted directly to a concrete floor without padding will not be warranted against cracking Do not install isolating valves between compressor outlet and air receiver This will cause excessive pressure if valve is closed and cause injury and equipment damage
  • Vestil HAND WINCH LIFT OPTION - DECK PLATFORM A-LIFT-DK | Zoro
    Optional Deck Platform for Hand Winch Lift Truck Works only when forks are flipped down
  • BuyLog Flippingbook - Zoro. com
    The product numbers as shown in the following pages include the complete breaker or switch All devices listed come with Cu Al line and load lugs If line lugs are not required on a breaker, eliminate “WL” from product number; for molded case switches see page 6-5 Unless otherwise noted, all circuit breakers are UL listed in File E–11592 Molded case switches are UL listed in File E
  • 17698 Python Installation Guide - Zoro. com
    SPLIT SYSTEM INSTALLATIONS USE PYTHON MALE FLARED FITTING 1 Uncoil and straighten end of Python Line Set pipe to be installed Using a Python pipe cutter, cut end of pipe creating a clean square cut
  • LUBE CUBE Instruction Manual - Zoro. com
    MOUNTING AND ASSEMBLY Mount the coolant canister using the supplied bracket a The bracket attaches to the canister with included M6 bolts Attach the air regulator to the 1 4” NPT threaded ‘INLET’ side a Teflon tape should be used to ensure air-tight seal Install appropriate air-inlet connector to the regulator a Pull the regulator adjustment knob away from the body to ‘unlock’ it
  • Personnel Lifts Aerial Work Platforms | Zoro
    Personnel Lifts are a type of aerial work platform that is used to safely lift personnel and their equipment to various heights They are often used in industries such as construction, maintenance, inspection, and repair Types of Personnel Lifts The most common type of Personnel Lift is the scissor lift This type of lift uses criss-crossing supports that extend and retract in order to raise





中文字典-英文字典  2005-2009