backflow造句
1. The happy blood is unable the backflow centripetal dirty.
2. Backflow occurs primarily in the summer months, when the demand for water is greatest.
3. The dual check backflow preventer shall meet ASSE 1024.
4. Four required per backflow preventer.
5. However, backflow may now be creating other side effects.
6. Media type check valve for preventing backflow.
7. Certified testers of backflow assemblies must conduct this test.
8. Efficiency and backflow current are the two most important criteria of multistage depressed collector.
9. During irrigation period , the backflow from the farmland pollutes the branch.
10. The auxiliary line shall consist of an approved backflow preventer and water meter.
11. Also, mechanical backflow preventers and air gaps can be bypassed.
12. Especially made for testing all reduced pressure zone backflow preventers.
13. The enclosure and the backflow preventer shall be covered by a single warranty policy.
14. For use with backflow preventer test cocks to protect from damage.
15. Certified testers of backflow assemblies must conduct this confirming test.
16. CPI special - purpose SMT backflow brazier lubricating oil. textile stereotypia machine stretching machine chain link oil.
17. The intensity of the gas backflow and axial swirl ond the dilution in the afterburner are enhanced by increasing the air-to-fuel ratio, and then the combustion efficiency is improved.
18. From this causes two backflow agitation efficiency not high substantial clause.
19. The system should be flushed before the backflow valve is installed.
20. If the disorder is allowed to progress, the continued backflow of bile will cause parenchymal cell destruction.
21. In the crossing site of the gravity wave along the low jet stream and that of forward sector of backflow, the impulsive force might be very strong, and a squall line just appeared there.
22. At this point reverse flow may allow process products to backflow into the cylinder.
23. Furthermore, the main reason of the axial backmixing of the liquid is the liquid backflow which induced by the reverse flow of the bubbles.
24. A check valve may be required ahead of the backflow preventer.
25. The new HP package contains quality Watts components ... including the new AS-B Bronze Air Scoop and the B911S Combination Bronze Fill Valve and Backflow Preventer.
26. Piping used to supply hydrogen chloride into any liquid system must include backflow prevention.
27. This would create an air gap to eliminate any possible backflow.
28. Multiple safety devices to provide functions of anti - backflow [Sentence dictionary], automatic over - temperature cut - off and pressure relief.
29. If installed on a fire sprinkler system, all mechanical checks, such as alarm checks and backflow preventers, should be flow tested and inspected internally in accordance with NFPA 13 and NFPA 25.
30. The acute biological toxicity of residual chlorine and five organic chlorides against normal backflow activated sludge in a CHLOR-ALKALI factory was examined.
12