你给出的这句句子就是一个以感叹词how引导的宾语从句,如果没有was,这句宾语从句里就没有谓语了(how difficult是表语,it是形式主语,to drill through the hard rock为真正的主语).这句话的意思是:“如果他们知道钻透这块坚硬的岩石是多么困难的话,他们就会丧失信心了.”这是一个非真实条件句,所以用了虚拟语气...
it 是形式主语，指代它后面的动词不定式，正常语序为：to drill through the hard rock is difficult，是由how引起的宾语俗语，在这里，作为if they knew 的宾语，语意为：如果他们知道钻透这块坚硬的岩石是多么的困难的话，他们将去失去信心。
I don't really understand how a drill-through with a button works.I have a customer sheet where you can select a specific customer. You then get the data for that specific customer.I wanted to make a button next to some data about back orders where it could drill-through and redirect ...
In Select a report from the list, type or select the name of the report you want to jump to. Note The list of report names includes all reports in the current report server project. If the drillthrough report is on the report server but is not in the project, type the name of the...
Understanding Drill Through in Power BI Drill through is a feature of Power BI that allows users to access detailed information from a single point in a report, with just a few clicks. It gives users the ability to go from a summary report to a detailed report. This allows for a more ...
Use a process called “undermining” concrete by removing soil beneath the concrete slab. This will allow the concrete to be more easily broken. First use a garden hose to loosen the soil. Then use a shovel under the lip of the concrete. The more soil you remove, the easier the concrete...
Hello all. I am currently working on a project whereby we are required to evaluate and potentially reinforce an existing concrete slab due to the creation of a future 4 feet by 4 feet future opening for electrical conduits. We are dealing with a very old building that is in good shape (...
Safety rule #2 is to clamp your work. Drill bits have a tendency to grab the metal just as they're breaking through the material. Sometimes the bit stops cold, which means that all the drill's spinning force is transferred to the workpiece. If the work isn't clamped or at least held...
If you’re going to build your shed on a concrete slabread this post to learn about anchor bolt placement and to find out how to make your shed 3 inches taller. You’ll want to build the shorter walls first so you can move them aside and use the floor space to build the longer and...
If you want a 1.5″ thick concrete slab, add 3/4″ to the strips so they are 2.25″ tall. This accommodates for the bottom of the mold. Mold Pieces Cut 4. Assemble the sides of the mold. Attach using 1 5/8 inch black drywall screws about every 8-12 inches. Drill a pilot hole...