Before using objects like rows and cells, be sure to test them to make sure they are not null.
在使用行和单元格这样的对象之前，一定要测试它们，确保它们不为空。
Make sure that any objects that need to be explicitly closed or returned to the pool are so done.
对于任何需要显式关闭的或需要返回到池中的对象，请确保进行了这样的操作。
If an organization sets standards for which shapes are to represent different objects in a process, there is no way to error check to be sure that the shapes are used correctly.
如果组织设置了相应的标准，规定哪些形状表示流程中的不同对象，则没有办法进行错误检查，无法确定形状是否使用正确。
Using PHP V4, you would have to test the argument types in this example to be absolutely sure that the coder passes around the right kind of objects.
使用PHPv4时，必须测试本例中的参数类型，以绝对确保编码器传递类型正确的对象。
Do so, accept the defaults, but be sure to select the XML and SQL objects and data option.
这时可以接受默认设置，但是务必选择XMLand SQLobjectsanddata选项。
Be sure to set the connection option for "synonyms" on so that you can see nicknames (Information Integrator objects that represent remote data).
务必选中连接选项“synonyms”，以便可以看到昵称(表示远程数据的Information Integrator对象)。
Be sure to handle needles and other sharp objects carefully and safely.
一定要小心处理针头和其他锐利的物体和平安。
Be sure you know the rules for identifying database objects in the database you are using.
务须了解所用数据库中的数据库对象标识规则。
Be sure you have enough memory for internal purposes and new managed objects.
确保有足够的内存用于内部用途和新的托管对象。
As you strip the bed, be sure to shake out the linen to check for articles of clothing or other objects that might be mixed in with the bedding.
在剥脏布草的时候，用力抖动，防止有客衣和其它物品卷在被单里。
Likewise, timestamp members must be updated to the database-generated timestamp values to make sure that the updated objects are consistent.
同样，时间戳成员必须更新为数据库生成的时间戳值，以确保更新后的对象一致。
If some objects can be accessed by more than one thread, make sure member variables are protected by synchronization mechanisms.
所有全局变量都是线程安全的。如果允许一个以上线程访问全局变量，应该采用互斥之类的机制。
A safe place should be picked when doing welding work. Before implementing, double check the surrounding area, make sure flammable object is not around, or separate and wet the flammable objects.
焊割作业要选择合适地点，作业前要仔细检查，周围的可燃物必须清除，如不能清除时，应采取浇湿、遮隔等措施加以防护。
A safe place should be picked when doing welding work. Before implementing, double check the surrounding area, make sure flammable object is not around, or separate and wet the flammable objects.
焊割作业要选择合适地点，作业前要仔细检查，周围的可燃物必须清除，如不能清除时，应采取浇湿、遮隔等措施加以防护。
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